I have a strange combination of traits that make GCA seem really scary. I was born with migrines and found that later in life synthetic hormines kept me headache free. But then diagnosed with breast cancer and had to go on estrogen blocker. Also have PMR and glaucoma and pred is causing havoc with my eyes. I went through an extreme taper with my hormones when I switched. And it worked! No migraines. But have to be vigilent but how do I handle the high pred and my glaucoma if GCA strikes? (I was telling my eye doc about all this when the young tech overheard it all, he told me, "You have such a good attitude!" Well, one has to be practical.) I guess the new biologic will be the answer? Hope I don't have to find out.