Hi Dear !! Thanks for your query to HCM .
Read and reviewed your query and health concerns.
IN the given situation, You seems to suffer from-TOS-N(Thorasic Outlet Syndrome)with
Nerve Compression.
The fact of 2 neck surgeries almost confirms this.Sitting on hand relieves this pain with hand becoming warmer,which is because of release of nerve compression with release of its vascular supply.
CT neck and
Second Opinion from another Surgeon would confirm these facts after clinical / physical examinations, in your case.
Hope this would help you to plan further of this complex illness of yours.
If need be, update any health issue 24 x 7 by a direct question to ME, at following HCM link-http://doctor.healthcaremagic.com/Funnel?page=askDoctorDirectly&docId=70229
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If you want to update more details and ask more update queries ,
You are most Welcome herewith !!
Good Day!!
Wishing Good Healthy Life in time to come!!
Dr.Savaskar M.N.
Senior Surgical Specialist
M.S.Genl-CVTS