I've been getting agonising back spasms for about 3-4 weeks. I'm probably getting them anything between 6-12 times a day (more if I'm not careful how I move). I feel generally a bit stiff, but it doesn't hurt when I keep still and I can make all sorts of movements without any pain. Tends not to be the big movements (picking something up off the floor) that cause them, but leaning forward slightly, sitting down or getting up. They last about 10-20 secs and I can't move when they start and am in agony.
I've had 3 sessions with an osteopath who says my lower back muscles are rigid. He's done all sorts of manipulation and even acupuncture, but it's not helping. I'm loathe to go to the doctor as I know they'll just say take ibuprofen and rest. Does anyone have any ideas what it might be and what I should do?