@pinkpam, If you scroll backwards to previous page you will see your post about 4th dose of Covid vaccine. The CDC changed the required wait time from 6 weeks after the third dose (for transplant patients) to 5 weeks. I contacted my transplant nurse coordinator when i saw the CDC announcement, and she verified that information for me. I also got a letter via my patient portal from my Mayo transplant team.
I got my 4th dose (Booster) and have had no side effects. I call it a 2 Tylenol experience. Drink enough water that you are well hydrated, and - the nurse who gave me the shot said to gently massaging my arm where you got the injection throughput the day.
Incidentally, I had my 3rd dose on Aug. 16, too!
I don't know about the shingles concern, have you first doses stirred up shingles for you?