I'm no doctor so I can't "diagnose" anything but I can give you my thoughts This does sound like hypomania to me. I suffer from hypomanic episodes and what you describe sounds similar to what I experience. My advice would be to keep a daily journal of moods and take note of all daily symptoms. And if you feel your symptoms are severe enough and you have documentation (this always helps doctors) you can see a psychologist or psychiatrist. I would do some research on hypomanic episodes and BE CAREFUL! If you notice you're doing anything dangerous or harm talk to your parents about seeing a doctor right away. Good luck!