Lipitor and stomach problems

I've been on lipitor and other generic forms of it for the last 8 years since the age of 26. I started on 10mg then 20mg and later 40mg. About 4 years ago I started with severe stomach cramps. The pain is so bad that I have to go home in the middle of the day, I can't walk or sit straight the pain is that bad and NOTHING helps. On a scale of 1 to 10 I would probably put this at a 7 or 8. I would also be nauseous and be really tired. I have had countless opinions and tests done and doctors keep telling me it is an "enigma" and there's nothing wrong with me. We've treated it through coeliac diet, exercise, lots of water, but it never helped. About a week ago I stopped drinking my meds by pure chance. I have not had one incidence of stomach ache. My doctor tells me that it's not possible for the lipitor to be the cause. I am sure he's wrong. Has anyone had a similar experience?

Took Lipitor for 8 years, precribed by my physician because my total cholesterol was almost 300. (don't eat junk food or much meat, rather whole grain bread, cheese, much fruit and raw vegetables. Exercised for 40 yrs regularly.) 6 yrs ago I could not walk for more than a few steps, then had to sit down. Still did floor exercises on the mat. I weigh around 120 lbs at 5' in height.
Last Dec. 28, a sudden collapse! Could not even crawl for 3 hrs-- then forced myself up on the bathroom sink cabinet top. (It felt so good to be standing!) Could move all limbs and carefully held on to furniture.
I never took another Lipitor again, but can't stand or walk longer than minutes, before have to sit down. If I hang a dress up in the closet, I have to reach up and hold onto the rod with the other hand. Most of the time I use a cane when leaving the house, but can shop for an hour leaning on the shopping cart. I have a constant backache. With no stomach problems, I dare to take 2 aspirin tablets daily. They work better than Advil, Aleve or Tylenol Arthritis. I have osteoarthritis, but only in the spine. When the pain returns, I take a 7.5 Lortab, to be able to do simple housework in my small home. I live alone. My son is also single and my neighbor, who takes me to the doctor or grocery shopping.
In bed or sitting, I feel no pain. When I was able, I kept busy creating soft-sculpture people, small dolls and dollhouses, and wrote books and magazine articles for publication.
Now I read and play video games on my PC or the XBox., So life is still worth living. I count my blessing. If only my weakness and backache would retreat.
Years ago I trained myself in self-hypnosis. It worked. I haven't had a headache in 34 years, no pains in knees or hips. But Transcendental Meditation won't do the job on my aching back or give me strength.
Epidural steroids did not help.