"i wouldn&#039;t normally give feedback but i think it&#039;s really important for women to know the possible side effects. i was on yaz for 6 months and i started to get chest (heart) pain. the chest pain became more frequent and severe, so i went to my doctor to get their opinion. my doctor said there is a chance that the pill (especially yaz, because of the hormones it uses) can cause clotting of the blood, which can then lodge in various places in the body. i was told to go to emergency if my leg started to swell, which it did. the pain went away gradually after i stopped yaz, but i really believe it would&#039;ve been a serious problem if i kept taking it. please be careful when taking it, you&#039;re better not to take it if you have these symptoms."