<s>[INST] Hi, I would really like to know why my heart always beats really fast after a full meal i'm 21 and not on any diet this usually always happens after I eat and have no idea what causes it to happen I do drink soda with caffeine but i've had caffeine all my life and never had any problems the fast heart beat lasts for a couple hours before slowing down to a normal rhythm and when I swallow I have a little discomfort pain in my throat what do you think is the problem with all this? [/INST] Hi,It may have two causes: either your stomach is too full after eating or there are abrupt changes in blood glucose levels after eating. For both causes it is better to eat with small portions, but frequently. Don't drink soda or any other liquides with meal. Chew slowly. Take careCome back if you have any further questions </s>