My Question Is, I Had A Heart Attack Last Saturday

My question is, I had a heart attack last Saturday and I spent 4 days in hospital to get 2 stents put in. When I had my attack my my left upper arm it ached terrible. Now right above my elbow on my right upper arm is very sore. It may be because the nurse taking blood from that arm didn't hit a vein and was moving the needle all around under the skin?