insomnia
"My rheumatologist feels that this medication allows me to sleep without extreme night time pain. If I do not get sleep, I am unable to function during the day. This medicine allows me to sleep without pain causing tears every time I turn over. Sorry, I have had none of the side affects except for the ability to sleep for 8 hours---the reason I agreed to take this medication. Quality of life trumps pain and the chance that I will have any of these side effects. "