OCD? Spent hours searching a book in the library

Hey, so I've never actually been diagnosed with OCD. I did a little bit of research, I always thought OCD was organizing things. But I'm not normal, I have this thing where I feel something isn't right. I obsess over it or if I brush my hand over something correctly then it's fixed. Or I have to do this thing on stairs, I'll walk up a few or down them because something isn't right. I read this thing on memories. I know something happened, but then I doubt myself to the point I don't know if it happened. And I think too logically in relationships. I'll put statistics on things and if they might not work out I distance myself, there's other odd things I do. My family always told me I was fine but then said things like I was messed up, and said to just ignore what I felt. Like I was making it up. I don't know what to do, I don't have a doctor currently, I was never diognosed. Is there a way to be sure I have it? Or a way to stop everything? I just want to stop everything, please and thank you. Sorry for the long post. If anyone can help, I would be so thankful.

I'm in college and about an hour ago i had class. I like to sit alone bc I get a bunch of stupid intrusive harm thoughts. Anyway I couldn't focus AT ALL today. This girl decided to sit next to me and I wanted to ESCAPE. Like i desperately wanted to get up and leave to the bathroom and wait till class was over. I took a deep breath and stayed anyways and tried to focus on lecture but i kept getting so many thoughts and I kept hyperfocusing on my right hand (which was next to her) and my hand felt so weird! Like tingly?? I was like "omg why is my hand feel so weird?? Does that mean i want to do something?!" And it kept imagining me grabbing at her or grabbing my drink and throwing it on her while i was trying to take a sip. I tried eating my breakfast to distract myself but i was holding a fork and got another thought. I realized i was tensing my hands (as a compulsion... i try to keep them as still as possible and as close to me as possible bc the thoughts feel so distressing and the "what if i act out " is playing in my head) And I was internally panicking and now im at the library feeling sad and i feel like I need to solve this. I spent the past hour just mentally reviewing the whole class time rn. The whole class time I was at the edge of the table trying to stay as far as i could and i would get relieved whenever she would stand up to leave the class for something. I managed to make it through the whole class without leaving though but the question in my mind is bothering me so much, "how do I know that these thoughts aren't genuine or are thoughts I want to carry out and why was my hand feeling so weird?" I feel stressed at the library and i want to figure this out 😞

i’ve unfortunately fallen into the cycle of trying to figure out my thoughts and find answers as to why i feel so distressed. this still pertains to the situation regarding changing my room for those reading who have seen my multiple posts over the last few days. i’ve been so distressed and in so much panic about it. i’m also panicking over my other room looking so different from when i left it. it’s been making me feel crazy because to me there’s no reason for my anxiety to latch so hard onto something that seems so minuscule. i was thinking i was having anxiety over change, but it’s like symptoms of ocd too that’s making it really hard for me to let go. SO i started thinking maybe it was perfectionism ocd? i’ve realized over time that i do compulsions to where things have to feel “just right”, but i also do that with any environment i’m in. like it HAS to feel cozy to me and provide me comfort in order for me to feel at ease. and this change is causing me to panic because there’s something wrong that i can’t find an answer to. maybe the different colored carpet? but it’s also more than that it feels like. however, now it’s spreading into other areas of my house where i’ve always been fine in and possibly to just any area i’m in at all. hence why it’s making me feel crazy because there’s no reason for me to be THIS distressed over that as i’ve never really had this problem before. and when i did it would last maybe an hour to a couple of days at most, but this has been going for over 2 weeks with my really bad anxiety being this week. i’m doing a little better, but it’s still hard when i can feel that panic waiting for me to acknowledge and just engulf me in the ocd cycle. i’m also analyzing basically any feeling i have so i just feel off in general and like i’m going insane. i’ve been so hyper focused on how i feel and that will send me spiraling too. multiple themes then start coming in like existential ocd and fear of solipsism. not to mention my harm and contamination ocd that just adds on when i’m this vulnerable. then i worry if no one is real, then no one feels the way i do. or just in general that what if no one feels the way i do. honestly, i think being out of college and in my house with nothing to do is causing me too much time with my thoughts. which is why i’m so distressed about everything that pops into my brain.