I Have Had Severe Back Pain For 6 Months Now.

I have had severe back pain for 6 months now. Went to doctors and they said to try muscle relaxers. Saw a massage therepist. Own a back brace. Over time it's just gotten worse. I eat ibuprofen and tylonel on a daily basis to stop the pain. I'm not being able to do my job properly anymore because of pain. I can't sit through a movie or stand for more than an hour. Wake up several times in the night to change positions.

A friend told me to check my kidneys. I looked online at symptoms and this is what I have for kidneys:

Urination changes (dark/smelly)
Fatigue (yes)
Nausea (yes, loss of appetite, loosing weight fast, trying to eat anything I can)
Bad Taste in Mouth (bad breath, taste, no dental problems)
Chills (hands/feet ALWAYS freezing!)
Leg/Back Pain (YES!!)
Dizziness (did gymnastics and learned very good balance. Last few months have been tough to keep my balance.)