Could I have been misdiagnosed?

I was extremely cynical and didn't think that anyone loved me I thought that people were out to get me and were watching me at all times. I was really obsessed with tiny little Miniature things like doll houses and little furniture from them anything that was little and was blue I would steal was a kleptomaniac. I also loved hard rock headbanger rock. I would throw huge tantrums whenever I didn't get my way in life and would pitifully cry when I thought my life sucked and. It was really hard for me to relate to anybody. It felt like I had nothing in common with anyone so I had nothing to talk about except I would always ask everyone when I met them If they watched sponge bob and if they loved it and if they didn't like it then they weren't recognized as a member of one of my weird sponge bob tribe. I was really hyperactive and would get really deeply sad and melancholy depressed and then whenever company was over or my sister's friends were over I would spring out of depression and go into a hyper manic mood and be jumping around and then I would talk so fast I couldn't catch my breathe of total excitement because me and her friends would play dance dance revolution and would have sleepover and would go crazy wild happy Ecstasy. I had weird fast mood swings. I not so paranoid now but during my childhood I was so hyper didn't need a lot of sleep at all. And now I was recently diagnosed with major depressive disorder when I was hospitalized this january. But I'm like I was when was a child just not that so manic. Could I possibly have bipolar disorder or bipolar disorder 2 which is hypomanic?