Why is this bothering me so much?

ik it’s dumb but it does hurt seeing every single one of my friends and my bfs friends post their gf for national gf day but i don’t get a post. it’s v cringe. i know. but it’s triggered me into thinking my bf is cheating on me and idk how to not be so upset with him over something so dumb. i just feel like im being played and our relationship is fake from this STUPID thing. like now i think he’s hiding some alternate life from me and it’s making me question if i know who he is. FROM THIS STUPID MADE UP HOLIDAY THATS AB POSTING A STUPID STORY. i can’t help it. and maybe maybe not mindset is just making me more upset bc it’s so insanely difficult to sit with this kind of uncertainty. i know hes not, but at the same time NO I DONT AND I CANT STOP THINKING AB IT.

i could be fine one day and then all of a sudden go into this long period that lasts a few days, sometimes even weeks where i feel so disconnected from everyone and everything. i will be talking to my boyfriend and think to myself “ is this really my boyfriend do i even like him “ or i’ll look at my family and be like “ is this really my family “, i feel so out of touch with reality and it is so scary. things look distorted, i feel like i am behind myself 24/7, like i am watching myself through a movie or something. it is so scary and i feel like there’s something wrong with me, and what sucks is i cant even explain what i feel, and i feel extremely alone. my birthday is coming up and i feel like i wont even be able to have fun because i will feel so weird and not present at all, i dont know what to do and i will feel this way out of nowhere. some days its worse than others, idk i feel like im genuinely losing my mind or that im gonna lose my mind and go crazy. is this normal?

My mom just told me she doesn’t really believe that I have ocd because I don’t have enough “repetitive actions” and I just have bad anxiety. I feel so beaten down that someone so close to me doesn’t believe my struggles :(