I was just laying down playing some xbox, when my heart all of the sudden started acting up, like it was pumping really hard and fast and really rough. Like I could hear it clearly it was pumping so hard, and I felt like I was going to pass out. it lasted for like 10 seconds then all the sudden stopped. Could this be bad? Also I ve had a little cold lately with coughing, if that could be apart of why that happend. Few more details, i m 17. Oh and I think I had the swine flu , a mild case a couple weeks ago. I might still be getting over it. But I m not exactly sure if I had it or just had a cold. I never went to the doctor or anything, just looked up the symptoms and It seemed like I had the swine flu. Oh and Haha I haven t been getting much sleep lately. Modern warfare 2.. Yeah... living on that.. I ve been on a terrible sleeping schedule. and no, I m not stressed or have had too much salt... Well.. I eat like 2 or 3 times a day. sometimes less. I rarely have caffine or sugar. I usually just eat some cereal during the day and then dinner. Usually just your average homecooked meals.