2QA-19894-03728 · OpenVSafe

Timeline

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

2021-04-03
Registered in v-safe
2021-04-03
Dose 1 — Pfizer-BioNTech
2021-04-03
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-04-04
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness

Adult check-in
2021-04-05
Survey response — days 1–6 daily, dose 1
MedDRA: Headache, Pre-existing disease — Feeling: Good · Fatigue or tiredness

Free text: FYI- I have Hashimoto's and, other than the headaches, the other symptoms I've experienced throughout the vaccine process, have been the same as my Hashi symptoms, so it's hard to know if they are directly from the vaccine or a Hashimoto's flare stimulated by the vaccine.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-06
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-07
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-08
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-09
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-10
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-17
Survey response — day 14, dose 1
MedDRA: Autoimmune thyroiditis, Fatigue, Feeling abnormal, Headache, Pain, Pre-existing disease — Feeling: Fair · Be unable to do your normal daily activities

Free text: I feel like, I did approx. 10-12 days after my first shot. I'm having a Hashimoto flare-up with extreme exhaustion, body pain, headaches, and brain fog. I don't know if it's from the shot or a coincidence, but it's the same approx time after the shot

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-03
Health check-in — 3 months, dose 1
Feeling: Good

Adult check-in
2021-10-02
Health check-in — 6 months, dose 1
Feeling: Good

Adult check-in
2022-04-03
Survey response — 12 months, dose 1
MedDRA: Condition aggravated, Pre-existing disease, Vaccine positive rechallenge — Feeling: Good

Free text: After each vaccine shot, I experienced serious Hashimoto flare-ups. I don't know if it was a coincidence or if the elevated antibodies made it happen.

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

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-03	Pfizer-BioNTech

Free text

Release 6 — days 1–6 daily, dose 1

2021-04-05

Systemic reaction (other): FYI- I have Hashimoto's and, other than the headaches, the other symptoms I've experienced throughout the vaccine process, have been the same as my Hashi symptoms, so it's hard to know if they are directly from the vaccine or a Hashimoto's flare stimulated by the vaccine.

Release 7 — day 14, dose 1

2021-04-17

Symptoms: I feel like, I did approx. 10-12 days after my first shot. I'm having a Hashimoto flare-up with extreme exhaustion, body pain, headaches, and brain fog. I don't know if it's from the shot or a coincidence, but it's the same approx time after the shot cut off by CDC

Release 11 — 12 months, dose 1

2022-04-03

Symptoms: After each vaccine shot, I experienced serious Hashimoto flare-ups. I don't know if it was a coincidence or if the elevated antibodies made it happen.

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	Autoimmune thyroiditis	✓	✓	✓
SD	Condition aggravated	·	·	✓
SD	Fatigue	✓	✓	✓
SD	Feeling abnormal	✓	✓	✓
SD	Headache	✓	✓	✓
SD	Pain	✓	✓	✓
SD	Pre-existing disease	✓	✓	✓
SD	Vaccine positive rechallenge	·	·	✓
SRO	Headache	✓	✓	✓
SRO	Pre-existing disease	✓	✓	✓

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