I'm 24, and about 3 years ago I hurt my back - evident by a bit of pain, doing an overhead tricep curl with too much weight, and tipping backwards. For a few months it was painful, especially in the morning. Also, I was about 4.5 stone overweight which probably didn't help. The last few months I've been doing some running, (now only about half a stone overweight), and the bad back has returned, not that it ever disappeared completely. I notice it especially in the morning, but it's not too bad in the day, I just know it's there. I can't narrow it down to a particular place, it's from the bottom to the top and seems to vary from time to time. So, just before I visit the quack, any ideas, or little tests I can do to see what the hell is going on? Much appreciation.