I was diagnosed with PMR in March and SMM in May. I saw an opthalmologist in April for my annual eye exam and they checked for GCA. I was negative. My rheumatologist checks for it every time I see him. On July 4 I was having pain in my temples and they became very sensitive to touch. I also had jaw pain when chewing and a feeling of extreme tightness at the base of my skull. Fearing GCA, I went to the ER and spent 5 hours being tested for various things. I left with a diagnosis of probable migraine due to prednisone tapering. I didn't know it could cause migraines and I didn't know that migraines don't have to be debilitating. They can have any of the same symptoms that sent me to the ER.