I think im bipolar

I think I'm bipolar I searched like symptoms online and I have all of them and it kinda now adds up why I do that stuff (it's like I have no control) I don't want to like say anything but I also don't know what to do I'm not self diagnosing myself but like one minute I could be so close to killing myself than the next I'm like a kid on sugar it can sometimes last days and even weeks and I can be very dangerous to others and myself I also hallucinate alot and that's just some may I ask what you guys think