There are a LOT of exclamation points in your posts in addition to your iiiiii.
Inappropriate joking and strange reactions at work. Hypersexual behavior. I would look carefully and see if possibly this is more than just a really really good mood...
Btw- you are allowed to enjoy this while it feels good even if it IS hypomania. It's okay to enjoy feeling good whether it's from faulty brain wiring or a legitimate good mood. Just be safe and seek help before it gets out of control or you get too high or crash. Only you know your body, but since lack of insight is a huge part of mood disorders it may be a good idea to listen to what your friends are seeing or hearing that is causing them concern. Be safe.