It's not beer in there is it? (sorry, bad joke).
It sounds to me as though you're not getting proper pain relief. Have you spoken to your doctor about this? Any unusual perspiration?
I would venture this guess, that it's not actually your vascular system, it's your sympathetic nerves. Which could mean it's gone full body (it usually does, imho).
Please, talk to your doctor about this!

My prayers for you getting proper treatment and resolving this issue!

Pete

asb