I haven't tried 5htp I do super cissus and bio-sil, which helps a lot with the pain and repairing the joints. I just picked up a bottle of CMO (cetyl myristoleate). I guess the CMO doesn't have any side effects either. I'm going to try it as I still have a bad time at night, too. When I lay down the muscles seem to sieze up pretty bad. I don't know if anyone else has spasms that feel like someone is wadding them up in a ball and throwing them on the floor. I sometimes sit on the couch and roll up into a ball and then the spasm passes for a minute or two and hits again. I'm just waiting for the drool to start coming out of my mouth.
If you try the 5htp let me know how it works,