I went to Bangkok Pattaya on Tuesday for my 4th vaccinated Moderna, I previously had 3 Pfizer, I woke up in the middle of the night, I felt as if I had been kicked by a horse. I couldn’t move my arm, the following day Wednesday I felt dreadful, paracetamols and bed. I had very little or no side effects from the Pfizer, both are MRNA make up, today Thursday a a lot better but not 100%, no idea why it aff3 ted me so badly ?