I am 50 years male. i have chronic pain in my neck, shoulders, upper back & lower back. It is more of stiffness, which very bad in the morning. After some movements improves slightly. I don t feel fresh even after night sleep. feel tired whole day. Also feel depressed for i had taken medicines also. I had gone for all the tests like blood, xray, MRI etc. Vitamin D level is low at 18. is this fibromyalgia. please suggest. My doctor has prescribed : 1. Myospaz twice daily 2. zaptra twice daily Are these medicines safe to take for longer duration.