I recently had a lower back pain for which I was diagnosed with vitamin d3 severe deficiency and mild straightening of lumbar curve and an increased esr. I have been doing exercises and I am on medication as well. I wore full sleeves exclusively. Could this be a reason for this? How do I make sure i am ok? Physiotherapy helps but i feel weakness in lower back and mild pain. The pain increases when I sit while the weakness subsides. What possibilities am i looking at? Help me explain what should i be doing. P. S- I dont feel numbness or anything in my legs.