Bipolar disorder

Happy, sad, angry, mad, mad, angry, sad, happy, happy, sad, angry, mad...
It's an evil circle that never ends and it's freakin pissin' me off. I'm not even sure if I have it but to be totally honest I really believe I do have bipolar disorder. It's very clear that my mood is impossible to predict since I can go from very happy to very sad within seconds. Blergh!