Why so much pain?

About midmarch i was having muscle spasms in my lower back--I could hardly walk for about 2 weeks. After muscle relaxers and lots of stretching, my back improved; however, it seemed like every other muscle in my body started hurting. I'm so miserable at night when I try to go to sleep because my neck and shoulders hurt so badly. My thighs, knees, and even the back of one of my knees hurts. I can hardly move to adjust myself in my bed because of the pain. I've also learned I have golfer's elbow in my right elbow. Does anyone have any suggestions or ideas for the pain relief? Has anyone ever suffered from this? Possible causes and solutions? Please help!!!