I have had graves going on 4 years now. I was taking the PTU for for most of that time . 3 months ago i had iodine radation done and i felt worse then before. I actually felt like i was going crazy and was in and out of drs. offices and er's b/c i was just not feeling right. My Dr. told me that they did not give me enough radation and started me on Levoxyl 50mg. I was on that for about a month and was just starting to feel a little like myself again but just this week my dr. told me to stop taking it b/c he thinks he "jumped the gun" with having me start the meds. Now i am only on a beta blocker to stop my rapiad hearbeats and all my other symptons are coming back. I am tired of being tired and not being able to enjoy activities with my 2 boys. Would like to know what anyone out there thinks. Would love to hear from someone who understands.