If one is taking a beta blocker and does an ACTH stim test is that a good idea? I did that yesterday with an aweful reaction and was told to go to the ER. I started to sweat, heart raced, was confused, extreme nausea , felt hot all over and inside, and had a bad head ache. I also recently have been told I have a very high antibody level for Graves Disease and Hashimotos. I suffer from Hyper like symtoms. Couldn t they have tested my cortisol levels without giving me the stim test first? I felt bad for 12 hours! Now being more than 24 hours later I just feel wiped out, but much much better. Any advice is greatly appreciated, thanks.