Hi, I am 25, healthy, I don't smoke i drink only occasionally and weight a normal weight. I am worry because i get chest pain on the left side. I realised it is always 1 week after I finished my periods and i think I have had this for a long time. It is uncomfortable for a week and after it usually goes. My doctor said my blood pressure is good, the bloods test came up good, i have no short of breath and no heart desease history in my family. It doesnt get particularly worse if i make an effort. Is it pms ?