I think its got something to do with lack of blood flow or back injury, go see a doctor!
Neuropathy
Back pain lower right side causes are: Lower back and kidney disorders.
Lower right hand side abdomen pain and itching could be caused by several things. One item may be a problem with the gall bladder, such as gall stones or gall bladder disease.
I am not sure the omeprazole causes leg pain, but I take omeprazole, and I have BAD leg pain and arm pain and cramping. I can't stand for anything to put pressure on my legs. Just my grandson's touch on my legs, causes me to scream out in pain.
This disorder causes numbing of the buttocks and lower back, tingly feeling of lower back, pain running down legs, and even radiates to hip pain. This may limit your ability to do easy everyday task such as walk.
your pregnant.
What causes pain in upper left side of the belly
Lack of calcium causes pain in bones .So take foods which are rich in calcium.
diaria
When the disk bulges or herniates, it can put pressure on nerves which originate in the spinal column, and go to other parts of the body. This causes lower back pain, and/or pain to the hips, legs, arms, shoulders, and neck.
One can find information about the causes of lower back pain from the following sites; Chronic pain site, WebMD, Mayo clinic, Bupa, Health guide, and NHS.
sciatica