Hi, Last week I laid down in bed to watch tv when all of a sudden I started to feel really flushed, my heart was racing and I thought I was going to throw up, even though my tummy wasn t bothering me. After about a minute the feeling passed. A few minutes later, I felt a strange thunk (literally, like a knock) in my chest and my heart started racing again, I felt flushed and like I might be sick. It passed again after about 30-60 seconds and then I had a strong urge to urinate and I got really cold . This probably happened another 7 times, every 5 minutes or so and then it just went away and hasn t returned since. FYI, I am a 41yr old female and I have normal blood pressure and am relatively healthy and eat well, although could stand to loose 10-15 pounds. Any idea what this might be? Should I visit a doctor or should I wait and see if this happens again as it wasn t really painful and it did not affect my breathing . I did a bit of research and found information on SVT ( Supraventricular tachycardia ) and the symptoms sounded similar. Thanks so much for any information you can provide!