Hello I Am A Woman Of 34 Years Old And

Hello I am a woman of 34 years old and since seven years ago I have been having back pain. My pain seems to get worse with the years. The pain goes down to the legs and when I am standing up for more than 15 minutes I feel my legs so wick that I feel I am going to fall down. Right now my concer is that few months ago i have felt wickness in my both hands and tingling sensations and the articulations of my knees, hands and fingers really hurts.

The dr order some lab test to see if I have RF, but it was negative.