Pain and setback in progress

It figures that life is not going to let things go smoothly for me. I was making progress with my yoga and other exercises, improving my mobility and my pain, and now it's all out of whack. I think I need to make an appointment with my doctor, see what she thinks about fibromyalgia. I don't know that that's what wrong, but I was doing dishes the other night and DH came in and was rubbing my back and I had to tell him to quit because it hurt. Just a light touch hurt, and later on, when the cat jumped on my lap and put his paws on my chest, I about came unglued (granted, the cat weighs 16 lbs, but his front paws weren't holding his whole weight, so it shouldn't have hurt, and normally doesn't).
I've had this happen before, but it usually went away after a couple of days of dosing with ibuprofen or naproxen. This time, it's hung on for over a week, and it's not just my back that hurts, it's most of my joints (my hands and wrists don't hurt, but I don't have the strength in my hands that I normally do). Off and on, it even feels like my skin hurts, well, maybe hurts isn't the right way to describe it. It's more like my skin is very sensitive, and touching it is irritating. Not all of my skin, just in certain areas on my legs and back. Needless to say, it's disconcerting to have this happen just when I thought I had a handle on making improvements in my health.
I expected there would be days when my muscles hurt because maybe I tried doing too much too soon, but I really did not expect my body to go "You bitch, I'm gonna make your life miserable." It's not like I'm working out all that hard, I know enough to take it easy at first, and gradually increase what I'm doing. I wasn't increasing the number of reps I was doing, but I was doing them twice a day now (after having done them once a day for a couple of weeks, I figured twice a day was a good way to go). So now I have to work a doctor's visit into the budget, and hope to hell it's something that isn't expensive to diagnose or treat (yeah, like that's gonna happen). And it makes me wonder if the change in the way I'm eating has anything to do with it, since I've been cutting down on carbs, and adding more veggies in going with the diabetic WOE for DH. Fuck, I hope that's not it, we can't afford to have two different meal plans.