4CN-27885-77872 · OpenVSafe

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2021-03-05
Dose 1 — Pfizer-BioNTech
2021-03-18
Registered in v-safe
2021-03-18
Survey response — day 7, dose 1
MedDRA: Asthenia, Defaecation urgency, Disorientation, Dizziness, Hyperhidrosis, Visual impairment — Feeling: Poor · Site: Pain · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities

Free text: I suddenly felt light headed, weak, disoriented and I felt like I was going to faint. My vision became dark. I laid down to wait for the feeling to pass and I started sweating profusely. Then I had a sudden urge to go to the bathroom. This happened a week after the vaccine. I received the vaccine on 3/5 and this occurred on 3/13. I felt fine after it passed. I found out yesterday that my father had the same light headed, fainting, sweating, bathroom experience a week after his second dose. I had Covid in April, 2020. He did not.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-05	Pfizer-BioNTech

Free text

Release 5 — day 7, dose 1

2021-03-18

Systemic reaction (other): I suddenly felt light headed, weak, disoriented and I felt like I was going to faint. My vision became dark. I laid down to wait for the feeling to pass and I started sweating profusely. Then I had a sudden urge to go to the bathroom. This happened a week after the vaccine. I received the vaccine on 3/5 and this occurred on 3/13. I felt fine after it passed. I found out yesterday that my father had the same light headed, fainting, sweating, bathroom experience a week after his second dose. I had Covid in April, 2020. He did not.

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	Asthenia	✓	✓	✓
SRO	Defaecation urgency	✓	✓	✓
SRO	Disorientation	✓	✓	✓
SRO	Dizziness	✓	✓	✓
SRO	Hyperhidrosis	✓	✓	✓
SRO	Visual impairment	✓	✓	✓

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