Hi,
I agree with antony, You would need a Wikipedia reference-linkMri. I suggest you to get a screening mri spine.
Also what happens to you after exercise is DOMS- Delayed onset of muscle soreness.. Do a warm up prior to your strengthening exercise, followed by a cool down.
Use an ice pack which will reduce the soreness and pain.. Try to learn core, low back strengthening exercises from your physio..

Also are you diabetic ? when was the last time you checked
Do you have hyper-hydrosis - excessive sweating in any other body part/area ?