Am I bipolar or is it teenage girl hormones?

I’ve been dealing with this issue since I was 13.

I can’t tell if this is a bipolar issue or if it’s just my hormones. But my mood constantly changes, and I feel like I have zero control over it and when it happens. Example, I’ll be completely fine and talking with people one minute and then it’s like a switch goes off, and I’ll start bawling my eyes out for no freaking reason. Or, I’ll be really happy about something & then I’ll get into this depressive unrealistic mode. I’ll think of scenarios in my head that never happened and cry over that for a while and then get really excited over nothing... again.

I’ve been dealing with this for four years now. I tried seeing if it was pms or my period causing it, but nothing changes even if I’m not on my period or pms-ing. There’s times where I’ll feel extremely EXTREMELY paranoid and anxious that someone is trying to hurt me or that someone is watching me and plotting against me. I’ll get into those phases too but I can get myself out of that thought process easily. I know it’s not normal and I know somethings wrong. It’s never caused me to hurt myself or anyone else. These thoughts aren’t TOO obsessive to the point where it’s driving me psycho, though. It’s just the constant mood changes I’ve been dealing with ever since I hit puberty.