I have been operated for sebaceous cyst 3 years before, located at upper back center, after operation I had severe back pain mainly after few waking hours, I had to take rest and pain relives, then yoga helped me and pain is mild and frequency also reduce, I have consulted orthopedic doctor he said it's all normal and though pain location and operation location is same but it's just a co-incident, that time I diagnosed with vitamin d deficiency, still I have the same after completing course, should I go for some further check ups?