Left side arm pain with no chest pain.

My father has left side arm pain from yesterday which started in the back of shoulder and neck and now came to the arm. He has no chest pain and shortlesness of breath. The ecg done today is showing possible MI in avf and III leads and sinus tachycardia with left axis deviation. I gave him disprin today in the afternoon and then the pain reduced but came back in evening. He got evg done in this feb which just showed sinus tachycardia and left axis deviation. He is also under stress from 2-3 months. He got fever 4-5 days ago and took dolo for it for 3 days and his blood reports showed 94000 platelets. The doctor was not available today and will not be there tomorrow also . So probably will be going on Monday for check up. Should we wait or what should we do at home now. Please help me doctors