I have had heart palpitations for about 15 years. After a few tests they were diagnosed as sinus arrhrhmia. They come and go and don't bother me. They got worse during pregnancy and if I have caffeine or alcohol. Anyway, I'm currently on holiday in Turkey with friends and last night we had a big night.. I drank about 4 bottles of beer and 3 gin and tonics. I didn't get much sleep and today felt a bit ropey. I was just sitting down, got up and went to another room, bent down to pick up a toy and then had a huge palpitation and skippy beats that lasted a few seconds. I took some deep breaths and then almost passed out. Afterwards I was really shaky and weak. This has never happened before and I'm terrified. Does anyone have any experience of this type of palpitation ?