How do I know the difference between health anxiety and health focused ocd?

It started when I became an adult, and started receiving my mental health diagnosis. I hyper fixated on each and every action I did and how it could be related to my diagnosis’s. It then lead to fixation to my physical health — making appointments and seeing every specialist I can to rule out every possibility. I currently have been suffering with obstructive sleep. I woke up the past few days with severe pain from the lack of sleep whilst believing I was oversleeping. Luckily my fit watch tracks my sleep cycle and it turns out I am not receiving any sleep. I had an extreme panic attack — bursting into tears on the phone with my mom wondering what this case might be. She told me it could be sleep apnea and that a simple sleep study could figure this out. However, knowing my family history I made appointments to every specialist I can to make sure it is nothing serious. The unknown of health can be scary to me. Watching my mother suffer with her physical health chronically since I was a child lead me to be very conscious and aware of how my body is functioning. This morning was one of the worst moments of physical pain. I should just take one step at a time with the sleep doctor instead of taking measures to see every specialist that could pertain with this issue. However, that is very hard to me. I don’t want to ever wake up in the pain I was this morning. Does anyone else suffer with health-related OCD? And if so, how do you find a sense of ease during moments like I expressed?

How to know if you actually have it or if I’m just making up the symptoms? I have a lot of intrusive thoughts constantly and even have a “theme” but it really surged after I search up what I was experiencing, but then again I search up a lot of what I experience and constantly have to recheck things. My parents say I’m normal but I know I’m not, (both of my siblings have adhd) I find it immensely hard to focus from turning 17-18. Please let me know what you think l! Thanks!

Does anyone have any advice for how to know the difference between ocd and real feelings/thoughts? Sometimes an intrusive thought will come in and I immediately know it’s ridiculous and I can just leave it alone and it won’t bother me but other times I really really don’t know. It’s when ocd hijacks and twists my real feelings and thoughts and tries to manipulate me into believing they’re something they’re not or something that doesn’t align with my true morals or intentions. But since it’s twisting and mixing with real feelings I get so confused and scared. Everything gets jumbled and I feel like I can’t trust myself or my own mind. Yet other times and other topics I can laugh off and push away just fine. Make it make sense. And then I start to think well maybe I don’t have ocd at all and I’m just in denial because I don’t want to accept that these scary/concerning things are true about myself. Or maybe that’s just the ocd talking.