Hi everyone I was wondering if anyone else has had a paradoxical reaction to amitryptyline? I recently decided to try it for sleep, I took one 10 mg tablet, and I felt like I had taken a stimulant. NO SLEEP, completely wired, fast heartrate. The strange thing is the next day, despite no sleep, I felt much less sleepy/exhausted than usual. Any ideas what one small dose could have done to my brain chemistry to cause such a severe hyper reaction? I really felt like I was on a stimulant for 24 hrs after taking the pill. Obviously, this is not the sleep med for me, but curious about the stimulating effect it had on me.