Is this Hypomania?Do i have Bipolar Disorder?

HI guys. I hope you are well. I am 23 years old and live in Glasgow,Scotland.Over a year ago i was in hospital with a major depressive episode.However over the last month i have been feeling ontop of the world and invincible, my thoughts race, i have so much energy, I only need a couple of hours sleep a night, i have spent money like a maniac and i have made all sorts of wild plans that my family have doubts about.But i have also been feeling very productive and creative. My family are a little concerned.I didn't feel that anything was wrong at first as i feel great and so happy.I don't think its mania as i am aware of how im feeling and i don't think i need hospitalised.Is this Hypomania?Do i have Bipolar Disorder?What should i do?Thanks for reading and i would appreciate your thoughts.