I was just wondering if u had heard of anything like I have before
Hello, You have sciatica like pain Initially with no significant abnormalities in MRI. You have not mentioned the reason for lumbar puncture. Lumbar puncture is usually done below the level of spinal cord Lower end and at this site only nerve are present for lower limbs. Usually lumbar puncture is safe procedure and associated with some local site pain and headache lasting for few days. Your tingling sensation may be due to nerve root compression Secondary to your sciatica or less likely it may be some non-significant injury to local tissue. I will advise you to consult a neurologist and take some pain modulator Chat Doctor.  Hope you recover early Thanks