I am having severe back pain , my right leg goes numb when I move, it gets hard to breathe when the pain increases, and I get a migraine once the tingling in my leg goes away. I am 28yrs old, 6 3 , 200lbs. I have had one MRI and they were only looking for disc problems which they found none. Please any suggestions would help greatly. It has been happening periodically for 3 years, the last 2 have been getting progressively worse month by month. I have also had my legs completely give out at times from underneath me.