my father has return from neck biopsy surgery recently, and he has complaint about numbness of fingers at
night. and this became frequent when he is going for radiotherapy for NPC. may i know what is this about and FYI my dad is a stable angina patient, could it be symptom of stroke? TIA? or post-surgery effect? he in on losartan, carvedilol, atorvastatin, plavix med.