I had to take Prednisone as pre-medication before a CT angiogram ...

I had to take Prednisone as pre-medication before a CT angiogram (had an allergic reaction to the dye in a previous exam). Dose was 50mg, 3x, 6 hrs apart. About an hour and a half after the first dose, I was feeling rather "out of it" and unwell. Took my BP out of curiosity: 145/104! It dropped later, but after the 2nd and 3rd dose (all this in a twelve hour period), both heart rate and BP stayed elevated (hit 128/minute pulse, beat my old record when I was hyperthyroid on Synthroid!) It's hard to believe this doesn't have a deleterious effect on the body--for me, it was of course preferable to the risk of anaphylactic shock. But I really feel for all of you who have to take it for an extended period (and sure hope I never do). Maybe it helps at least to know your symptoms and actions are definitely a product of this drug and that you will feel better when you can stop taking it?