I am experiencing lower back pain for the past week. It hurts to move, soreness and stiffness. Some pain in one side of my buttocks now and again. I am about 30lbs overweight, need to change my mattress that I sleep on and recently had a very demanding day, prior to feeling this way, where I had to rush around a lot, walking and running which I am not use to. I have also been ill with a gastric bug recently for a couple of days. I have had sciatica in the past also, when pregnant.  I have a bit of bruising where the pain is located from but this could be from applying pressure to the spot which when done alliviates the pain.
HI, thanks for using Chat Doctor It is quite likely that the pain may be related to the increased demands that you had to place on your body recently. It is possible that this would have resulted in mild trauma or strain on the muscles in the back. The increased weight would also increase the pressure on the back. Signs and symptoms of more serious back injury are