I Have Server Leg Pain Along With Numbness And Burning,I

I have server leg pain along with numbness and burning,I have had this for about 5 years now,maybe a little longer.I can barely walk anymore due to the pain.I also get sever cramps at night when i sleep.I also have ultra sound scheduled for my legs this month.My hips hurt as well.I have had xrays on my hips and they found nothing.I also had a MRI on my lumbar and that came back negative.No nerve damage.I just can't live like this anymore.I am a 60 year old male.