What Causes Pain In The Joints And Muscles?

I have been experiencing bad joint and muscle pain. Mostly below my waste. Left hip, both knees, both legs. Sometimes I can hardly stand up and when I do, it takes 10-15 yards before I m walking normal with no pain. I can hear everything kinda pop back into place. Especially my knees. My upper body is the same. Chest, shoulders, elbows. I m not having any burning pain and I do not get fatigued when doing things. But I should not be sore for two days after a round of golf. I do have Asthma. And it s pretty bad right now. Not sure whats going on. Would be grateful if you could offer some advice on what to do. And what might be wrong. Thx very much Chris....