Last night around 1030 pm my left arm started slightly and gradually feeling cold, like a breeze was blowing. I went to sleep and when i woke up at 5 am i didnt notice the feeling but as the morning is progressing its getting really cold again and my right finger excluding my thumb are cold as well. No pain at all or tingling just a cold feeling. What could cause this? Im 31 and had a testicular torsion surgery 4 days ago.