Brief answer...given below
Thanks for the query.
Your symptoms of tingling
and feeling of cold ice running down your arms and legs suggest some form of peripheral neuropathic pain
There could be various causes for such type of symptoms and these include...
Deficiency of calcium,potassium etc
Deficiency of VIT B12
Use of excessive alcohol
and use of tobacco
Very rarely amitryptaline can itself cause peripheral neuropathy
although in general it is given for treatment of peripheral neuropathic pains.
My advise for you would be to consult your doctor and get investigated for it,if you feel that symptoms are persisting or if they are bothering you.
I hope it helps,however you may revert to me for any further query.
Best of luck