Sounds like you have irritated a nerve or a group of them to the spinal cord. You should probably be checked by a neurologist for a nerve conduction study checking the sensory pathways and then get an MRI of your spine. You can also have him or her screen for a sensory neuropathy that includes for instance diabetes, sjogrens syndrome, HIV, monocloncal antibodies etc. Once you have the diagnosis, you should know where to go from there.