hi im 24 yo male ive had anxiety for 4 years now,and gerd for 2.ive had 3 infected teeth for ahwile now and i also have mitral valve polaspe mvp.i had 2 removed a week ago tuesday i was given amoxil to pre medicate.anyways ive been taking amoxil for 6 weeks now i wonder if i have gotton imune to it,and its not going to work on this last tooth..anyways since these teeth flaredup up about 3 months ago i have chest pain,and seems like my heart is racing etc..i take my blood pressure its usually normal,and my pulse is around 59..the chest pain is like tight from the midd;e across my ribcage..my ribcage is tender too..anyways i wonder if its my heart im 140 pounds 6ft,and scared when i working,or when im not that this is a heart condition im scared thank you..