I was diagnosed with GCA and PMR 3-1/2 years ago. I was given 50 mg of prednisone along with methotrexate. I was down to 2-1/2 mg of prednisone and thought doing very well until I received my 1st Pfizer vaccine shot which was in April. A week after receiving the shot I had a relapse and my crp went up to 6.0. I raised my prenisone to 4 mgs and stayed on 4 mgs for 3-1/2 months until all my symptoms dissipated. I am very nervous about getting the 2nd shot.