I think I'm bipolar

I really think I'm bipolar or something. Its like I can feel really sad and happy at the same time. I mean I feel really sad inside nowadays. like deep inside my head/heart or whatever. But when I find something funny i can really laugh about it. But i still feel sad about it. And my tweets are of different moods. I'm worried about my own mental well being. And learning health and wellness in school makes me more aware about myself and how I actually react to things. Quote scary actually.