2X7-13315-78759

2 vaccinations 6 coded responses 17 check-ins 6 free-text entries 0 call cases

Sex: Female
Age at first dose: 21-25
ZIP prefix: 432 / OH
Registered: 2021-04-08

Relationship: Self
Race: White
Ethnicity: Not Hispanic or Latino

Timeline Vaccinations Free text MedDRA terms

Timeline

Registration Vaccinations Survey responses Call reports Cases without a report Call attempts Call successful Pregnancy survey

2021-04-07
Dose 1 — Pfizer-BioNTech
2021-04-08
Registered in v-safe
2021-04-08
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain, Swelling · Headache, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-04-09
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Rash, not including the immediate area around the injection site

Adult check-in
2021-04-11
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-14
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-21
Survey response — day 14, dose 1
MedDRA: Alopecia, Fatigue, Headache — Feeling: Fair

Free text: Excess hair fall, fatigue, headache

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-30
Dose 2 — Pfizer-BioNTech
2021-04-30
Health check-in — day 0, dose 2
Feeling: Good · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-05-01
Survey response — days 1–6 daily, dose 2
MedDRA: Dysmenorrhoea, Heavy menstrual bleeding, Menstrual disorder, Vaccine positive rechallenge — Feeling: Fair · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Free text: Sudden increase in period flow and cramps. This also happened with my first dose. I was ending mine during the first dose and it suddenly increased bleeding. I was about to end my current period but now suddenly I am having heavy bleeding and cramps. It should be noted that I have an IUD and my periods are normally very light.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-02
Survey response — days 1–6 daily, dose 2
MedDRA: Abnormal menstrual clots, Dysmenorrhoea, Heavy menstrual bleeding, Menstruation irregular — Feeling: Fair · Headache

Free text: My period suddenly restarted with extremely heavy flow and large blood clots accompanied by very painful cramps. This also happened with my first dose. I was on the last 1-2 days on my period when receiving the vaccine and suddenly 24 hours later I had extremely heavy bleeding and cramping. Up until the vaccine I had very light and short periods because I have an IUD.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-03
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-05-04
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Fatigue or tiredness · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2021-05-05
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache

Adult check-in
2021-05-06
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Rash, not including the immediate area around the injection site

Adult check-in
2021-05-09
Health check-in — day 7, dose 2
Feeling: Fair · Fatigue or tiredness, Nausea, Diarrhea, Rash, not including the immediate area around the injection site · Be unable to do your normal daily activities

Adult check-in
2021-05-23
Survey response — day 21, dose 2
MedDRA: Constipation, Menstruation irregular, Pre-existing disease, Rash — Feeling: Good

Free text: Irregular periods, random body rashes, and bad constipation. HOWEVER I have hormone regulation issues that may just be coinciding with my vaccination and could be completely unrelated but I will keep an eye out

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-06-13
Survey response — day 42, dose 2
MedDRA: Constipation, Hormone level abnormal — Feeling: Good

Free text: Severe constipation and hormonal fluctuations

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-30
Survey response — 3 months, dose 2
MedDRA: Acne, Alopecia, Amenorrhoea, Dysphonia, Hair growth abnormal, Hormone level abnormal, Hypomenorrhoea — Feeling: Good

Free text: Hormone irregularities causing acne, hair loss, body hair, voice deepening, facial hair, light or absent period (confirmed not pregnant)

MedDRA releases: 2021-09,2024-11 · check-in free text available

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-07	Pfizer-BioNTech
2	2021-04-30	Pfizer-BioNTech

Free text

Release 7 — day 14, dose 1

2021-04-21

Symptoms: Excess hair fall, fatigue, headache

Release 8 — days 1–6 daily, dose 2

2021-05-01

Systemic reaction (other): Sudden increase in period flow and cramps. This also happened with my first dose. I was ending mine during the first dose and it suddenly increased bleeding. I was about to end my current period but now suddenly I am having heavy bleeding and cramps. It should be noted that I have an IUD and my periods are normally very light.

2021-05-02

Systemic reaction (other): My period suddenly restarted with extremely heavy flow and large blood clots accompanied by very painful cramps. This also happened with my first dose. I was on the last 1-2 days on my period when receiving the vaccine and suddenly 24 hours later I had extremely heavy bleeding and cramping. Up until the vaccine I had very light and short periods because I have an IUD.

Release 8 — day 21, dose 2

2021-05-23

Symptoms: Irregular periods, random body rashes, and bad constipation. HOWEVER I have hormone regulation issues that may just be coinciding with my vaccination and could be completely unrelated but I will keep an eye out

Release 9 — day 42, dose 2

2021-06-13

Symptoms: Severe constipation and hormonal fluctuations

Release 9 — 3 months, dose 2

2021-07-30

Symptoms: Hormone irregularities causing acne, hair loss, body hair, voice deepening, facial hair, light or absent period (confirmed not pregnant)

Each entry is dated by the survey it was written in (the CDC re-sent the releases with survey dates in 2025); click a date to see that survey response. The CDC cut some text off at about 250 characters: symptoms in every release, and the other two fields in releases 9-12. Those entries are marked "cut off by CDC".

MedDRA terms by release

Field	Preferred term	2021-09	2023-04	2024-11
SD	Acne	✓	·	✓
SD	Alopecia	✓	✓	✓
SD	Amenorrhoea	✓	·	✓
SD	Constipation	✓	✓	✓
SD	Dysphonia	✓	·	✓
SD	Fatigue	✓	✓	✓
SD	Hair growth abnormal	✓	·	✓
SD	Headache	✓	✓	✓
SD	Hormone level abnormal	✓	✓	✓
SD	Hypomenorrhoea	✓	·	✓
SD	Menstruation irregular	✓	✓	✓
SD	Pre-existing disease	✓	✓	✓
SD	Rash	✓	✓	✓
SRO	Abnormal menstrual clots	✓	✓	✓
SRO	Dysmenorrhoea	✓	✓	✓
SRO	Heavy menstrual bleeding	✓	✓	✓
SRO	Menstrual disorder	✓	✓	✓
SRO	Menstruation irregular	✓	✓	✓
SRO	Vaccine positive rechallenge	✓	✓	✓

✓ active code · ○ coded but marked inactive · blank = not in that release