Hiya I've had a blood transfusion of 4units in the past 15/16 hours n discharged from hospital this morning. Since being home I have noticed my heart rate is still very fast, I've also noticed that I seem to have a lot a gas around my chest area, I'm still very drowsy n weak n all I've been doing is sitting down with my feet up. For the past two times that I've opened my bladder I have a very sharpe pain in my lower abdomen. Could you please assist me? Thanks