U3X-23515-56867 · OpenVSafe

Timeline

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

2021-05-20
Dose 1 — Pfizer-BioNTech
2021-05-22
Registered in v-safe
2021-05-23
Survey response — days 1–6 daily, dose 1
MedDRA: Poor feeding infant, Vomiting — Feeling: Good · Site: Pain

Free text: My 12 month old breastfed baby boy threw up twice, 40 and 42 hours post

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-24
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-05-25
Survey response — days 1–6 daily, dose 1
MedDRA: Pregnancy — Feeling: Good

Free text: Im pretty sure Im late on my period. I am 100% certain I am not pregnant.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-26
Survey response — days 1–6 daily, dose 1
MedDRA: Anxiety, Cardiac flutter, Insomnia, Palpitations — Feeling: Fair · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: While sitting and breastfeeding my baby, I was falling asleep when my heart had some intense palpitations, or arrhythmias, Im not sure what to call it. It felt like it was going to jump out of my throat. My heart felt fluttery after that a good portion of the night and made it difficult to fall asleep. I noticed by 2a it was gone, but I have felt more flutters today. I am 29yo, I eat very well, and I exercise 4-6 days a week and have been for the past almost year. This feels very converting to me. Ive had a few anxiety attacks in my life and know what those feel like but this feels different.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-26
Report sent to call center — days 1–6 daily, dose 1
Get care from a doctor or other healthcare professional

1 call case(s)
2021-05-27
Survey response — day 7, dose 1
MedDRA: Cardiac flutter, Menstrual disorder — Feeling: Fair · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: I continue to have heart flutters off and on throughout the day. I am now wearing a monitor given to me by a cardiologist to figure out what the problem is. I also have a much heavier period than normal.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-27
Report sent to call center — day 7, dose 1
Get care from a doctor or other healthcare professional

1 call case(s)
2021-06-03
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-06-11
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-06-17
Health check-in — day 28, dose 1
Feeling: Good

Adult check-in
2022-05-11
Call 1 — Left Voicemail
2022-05-11
Call 1 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-05-20	Pfizer-BioNTech

Call center

2 call center cases

2 unsuccessful

2 waits over 3 months for a first call

See the call center timeline

Free text

Release 8 — days 1–6 daily, dose 1

2021-05-23

Systemic reaction (other): My 12 month old breastfed baby boy threw up twice, 40 and 42 hours post

2021-05-25

Systemic reaction (other): Im pretty sure Im late on my period. I am 100% certain I am not pregnant.

2021-05-26

Systemic reaction (other): While sitting and breastfeeding my baby, I was falling asleep when my heart had some intense palpitations, or arrhythmias, Im not sure what to call it. It felt like it was going to jump out of my throat. My heart felt fluttery after that a good portion of the night and made it difficult to fall asleep. I noticed by 2a it was gone, but I have felt more flutters today. I am 29yo, I eat very well, and I exercise 4-6 days a week and have been for the past almost year. This feels very converting to me. Ive had a few anxiety attacks in my life and know what those feel like but this feels different.

Release 8 — day 7, dose 1

2021-05-27

Systemic reaction (other): I continue to have heart flutters off and on throughout the day. I am now wearing a monitor given to me by a cardiologist to figure out what the problem is. I also have a much heavier period than normal.

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
SRO	Anxiety	✓	✓	✓
SRO	Cardiac flutter	✓	✓	✓
SRO	Insomnia	✓	✓	✓
SRO	Menstrual disorder	✓	✓	✓
SRO	Palpitations	✓	✓	✓
SRO	Poor feeding infant	✓	✓	✓
SRO	Pregnancy	✓	✓	✓
SRO	Vomiting	✓	✓	✓

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