Received Jun 2, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| PNC21 | PNEUMO (CAPVAXIVE) | MERCK & CO. INC. | 1 | — | SYR / LA |
I received the CAPVAXIVE (21-valent pneumococcal conjugate) vaccine on Saturday, May 31st around 3:00 PM at a pharmacy. The vaccine was administered as part of an immunological workup due to suspected immune dysfunction (possible CVID or MCAS), to evaluate my ability to mount an appropriate antibody response. Within 24 hours, I developed significant arm pain and redness at the injection site, which progressively worsened rather than improved. By 36?48 hours post-injection, the pain had intensified and spread from the deltoid area down into the lower bicep, with visible redness and swelling. I also experienced chills, deep fatigue, and flu-like symptoms, leading me to go to bed at 4:45 PM the following day. As of today (just under 48 hours post-vaccine), I continue to have significant fatigue, a low-grade fever, mild throat irritation, postnasal drip, and swollen lymph nodes? all localized to the left side only, corresponding with the arm where the vaccine was administered. The red area on my arm is about the size of a palm. For symptom management, I?ve used Zyrtec (cetirizine), famotidine, as well as Advil (ibuprofen) every 4?6 hours. This combination makes it possible to lift my arm, but the pain returns between doses. I plan to go to bed early again due to ongoing fatigue. No formal medical evaluation yet. Symptoms are still active at the time of this report.
None
Unknown autoimmune problem (doctor using vaccine as a challenge)
Propranolol, Metformin, Hydrochlorothiazide, Dextroamphetamine, Spironolactone, armour thyroid, famotidine, Zyrtec
Azithromycin, sulfa
n/a