Conversation: The conversation between human and AI assistant.
[|Human|] last nite it started a feeling of being punched in the upper abdomen under my sternum, I breath in it takes my breath away.. I have had open heart surgery a double bypass, my main artery to my heart was 80%blocked that was in june of 2012. the pain is a little less this afternoon, but it kept me awake most the nite. the surgeon used my mamorry artery instead of the leg, arm vein to correct this problem.. I ate peanut butter on toast before retiring to bed last nite.
[|AI|]  Hi! Good afternoon. I am Chat Doctor answering your query. With the history of a bypass surgery in the past, I would advise you to report in the ER of the nearest hospital to rule out any cardiac related problem as the origin of this pain. Till then, I would advise you to take a tablet of aspirin after some food, and a proton pump inhibitor Chat Doctor.  In addition, I would also give you one tablet of sublingual arbitrate as a preventive