I would like to know if I could have OCD and if I should seek help

Hi, I’m new to knowing about OCD and what it truly is. I think i have ROCD or relationship OCD. Last night I got into a panic attack because I thought my boyfriend used to be porn addicted. He wasn’t but he didn’t immediately reassure me. And then he didn’t know I needed it and I got into a loop. And then it like hurt in my chest and i genuinely felt so mad and all I could think abt was him doing it. And watching other women naked and master baiting to it. And thinking abt it over and over again made me break down and I cried until I had a panic attack. I’ve had other break downs about thoughts of my boyfriend going to a strip club. He said he doesn’t think it’s cheating and he doubles down on it. But how could he think it isn’t! And it goes in my head over and over and over again. Why doesn’t he? Does he wanna go? If he ever did would he think it isn’t cheating?? And no matter how much he reassures me it makes no difference. My boyfriend is always reassuring me and it never works. Only for a little while and then the thoughts come back and it loops and grips onto my brain. And it won’t stop. I lose sleep at night because of it. And when I was a kid I did too. I would lose sleep thinking abt getting kidnapped or raped or murdered. I still do sometimes. I had to move rooms my freshmen year from basement to upstairs where everyone is so I was safe and didn’t get kidnapped or if there was a fire I wouldn’t die in a fire. With my relationship OCD I also need a certain amount of reassurance until it feels right. Like he has to kiss me a certain amount of times. And say I love u until it feels right. And if he doesn’t it feels like it has to happen. And that something bad will happen. And with my thoughts I feel like I have to constantly ask my boyfriend if what I think is true. And for him to say it isn’t and to reassure me. I also because of this get constant thoughts that I’m unfit for this relationship and that I need to leave him because this isn’t fair to him. And it won’t stop! I know it isn’t true but it’s starting to feel like it is. Because why should he have to deal with this when I get so upset over so many little things he can’t control. I get so upset over things that happened before we got together that are just human nature but it feels heartbreaking and I keep seeing it in my mind and it loops over and over again and it ruins happy moments for me. I don’t know if any of this or none of this means I have it. But if I’m being honest it’s impacting my life more than I would like it to. And it takes my brain over and my bad days are too bad. And it’s impacting my relationships and how I treat my boyfriend just because of my thoughts. I don’t know what to do. If u think I have it please tell me. And what I can do to help me. It’s taking over my life and it’s becoming unmanageable.