Burning sensation, tingling, rigt. leg.

Since last 2 yrs.sufering from lower back pain while wake up from sitting position,can't sit or stand more than half an hour.In moving position feel good. Doing job as stores manager any how to survive job is necessary.some times forcefully want to sit to complete the task or any meeting schedule.after this started pain in upper back as well as cervical side. Basically this problem was start from cervical then Upper back,middle back and lower ba k now.. Treated since last 5 to 6 yrs..But not compleye recover.Doctors giv en pa inkiller and pregabalin contained medicine and it upset my stomach.and start other issues. One doctor is told that is ancolosig(x ray) spondylitis,and osteoarthritis. one said this is fibromyalgia. Till date 4 mri are taken. Bulging effect showing in spine. Can this recover. And completely ok.