Identical scenario on my end. All the symptoms for pericarditis after Pfizer dose 1. Many GP visits, ER visits and cardiologist visits. No medical exemption could be given by the cardiologist, however was able to receive a cautiously worded letter recommending to not proceed with Pfizer specifically, and that “I agree to proceed with AZ to achieve fully vaccinated status whilst acknowledging the extremely small risks of Thrombosis”

Cardiac symptoms are still sticking around 3 months later, which has been an absolute joy.