ive been thinking recently that i have some kind of mental issue and I dont know what its called. I have loads and loads of mood swings, I go from crying to being happy and jokey in minutes. I feel happy most the time at school and then awful when I get home for no apparent reason. I cant stop thinking about sex 24/7 and I feel like its literally taking over my life. I did an online test for bipolar and it said i should see a doctor, are these tests just a pile of bs or could it really mean something. Does anyone have bipolar and tell me what its like?