Thanks for your query.
Firstly, did you have shingles
over the left side of chest or left upper back, prior to 1999? If yes, then you have a condition called Post-Herpetic Neuralgia
which manifests similar to your problems. Long-term course of anti-epileptic drugs like carbamezapine, gabapentin
, pregabanyl will relieve you of these problems.
Other cause can be compression over the nerves in the upper part of the spine, due to prolapse of a disc or collapse-compression of a vertebra.
Discuss these possibilities with a Neurologist
, who knows what is best for you.
Dr. Rakesh Karanwal