I have back pain in my lower (at waistline) right side back. This has happened before as I have had part of a disc shaved due to bulging disc when I was a young woman. Now that seems to be a weak spot in my body and on occasion I have pain in that area. I did a lot of physical activity yesterday and by evening I was suffering that same back pain. I had a bad back last week and had not sufficiently recovered from that when I threw myself into projects around the house yesterday. Today I am still suffering with back pain but this time it's different. The back pain is still there but it has also moved around to my right side, right on my waist. I feel bloated and maybe constipated. It occurred to me, appendicitis? I don't really think that is what it is but I cannot get it out of my mind.