Hey,
im M21 and im going thru something similar. Its driving me insane. Basically just some months ago I was the straightest person alive. As weird as it sounds, it didnt take a lot for women to make me horny/attracted. But i dont have that anymore at all. I dont feel attracted to women anymore. It happened from one night to another. So, naturally, I got scared that I could be gay immediatly. The problem with that is that the thought of it doesnt leave me, so whenever i see a Men on social media i feel a sting in my chest, but it doesnt feel good. It feels uncomfortable. It feels like something that is only in my head. Its like when i see a Men i think about my whole problem right now and get scared. I was too straight to change sexuality over night. I was on a hard diet just 2 weeks ago and also had a lil stress. It could be low libido, but for some reason i just cant come in peace with that. It got so bad that every Men/Women i see outside i check how my brain reacts to it. This is bad, this is terrible, im scared. This is not who i am. I just hope that in some months i will laugh about this… I dont think its normal too suddenly turn gay or asexual from one night to another, hell, even from one month to another. Isnt it usually a slow process?