Hello, I had recently have had a lumbar puncture to do some test on my csf fluid. Its been about a 2 weeks since then and yesterday I woke up with extreme upper back pain. It feels like my muscles are cramping. Could this be from the lumber puncture? Thanks,
Dear patient there might be local infection at the puncture site. Check your self your back against mirror and look for redness of discharge. If it looks red and hot surely its infection, and you need to start on antibiotics.  If there is no infection then most probably its muscular pain and take tab diclofenac plus thiocolchicoside combination twice a day and hot water fomentation for 5 days will give you relief.