Amitriptyline
"Started amitrip. For Fibromyalgia  5 weeks ago @10mg. I started it on a Friday night after reading the reviews in case it made me groggy.  The first two night/mornings I slept significantly throughout the day.  But by Monday morning I was fine, and up by my usual 5:30am school route to take my children to school.  I felt a slight difference.    No other side effects. My pain was still there but just slightly less.  Doctor moved me to 20mgs after 3 weeks.  Again, groggyness but only the first day.  But wow!,  I noticed my pain is about 75% gone after the 3rd day or so. I still get pain if I over work myself.  But I just need to moderate my self.  Looking forward, hoping the next increase will be my miracle.  Very happy!"