Health anxiety - ocd. Treatment confusion.

Hello.
I mean, does health anxiety relates to ocd in any way ?
I thought, well, kind of... yes. And so I read online. There is some kind of obsession in it, and some compulsion to find releaf.
But what I really don't get is:

1) differently from ocd or hypochondriasis, if I fear a illness, it's not completely irrational. Maybe it's because I feel a very strange pain long-term, 4 months ago it happened because I had swollen lymph nodes for 6 months (I still do have, so it's 10 months now), then because I got some eye floaters wich bother me.
So... usually it all starts because I feel or see something real and "not normal".

2) Another thing I don't get: hypochrondriasis and Ocd, correct me if I'm wrong, no matter what logical answer they get, but their fears won't dissipate. Well, let's go back to swollen lymph nodes , I got lot of them down the groin for half an year, I was getting very scared (a friend of mine got testicular cancer 4 years ago, he is well and healthy now though), I went to my doctor and he told me it shouldn't be anything to be preoccupied but to come back if they didn't go away in some other month. I found some relief and I forced myself to don't take any action, I did, but after 2 months (I anticipated a bit:) ) I was still somewhat anxious from time to time, not really obsessing if not when particularly stressed, so I went back with the clear idea to ask him a prescription for a scan. I made it, and came out nothing serious. From that day my fear completely went away even if they are still swollen.
I do get rarely irrational fears, which can also terrify me, but they usually dissipate on their own or occasionally googling to find out if it relates to me, if I can't find CLEAR signs i stop obsessing without further reassurance.

Problem is that once one fear goes away I seem to "wait" untill something else "not normal" comes up and start the fear cycle again.
I really don't know and ask for your opinion, how should I treat this ?? Like ocd or hypo (mind that I found erp of little help, yes it lowers my arousal, but the real "not normal thing" is still there and so I find myself to forcefully ignore something very real), should I just treat like a hypersensitive and exagerated anxious response ? Could, in my case, talk therapy lower my arousal (it all started from an emotional violence some year ago, but looking back I have to say I'm fearfull maybe because of several past traumas, one involving a degenerative illness that took away my mom) once I resolve these past issues ? Really looks like a long way to go before I can find relief.

I'd like you to share some suggestion.

OCD tends to overlap with other fields anxiety, and when you get to those border zones the definitions can get surprisingly fluid, and even change over time. (Consider that a couple of hundred years ago hypochondria was just the word for the male version of hysteria.) So when you ask if a behavior qualifies as obsessive-compulsive, you're always likely to get a better answer by consulting a professional with hands-on clinical experience, rather than parsing terms in a DSM given checklist.

That said, if you obsess about irrational health concerns to the point that it's a serious detriment to your life, and especially if you perform compulsive actions like repeatedly checking yourself for imaginary tumors, reading through WebMD, or asking others for reassurance, then that could easily qualify as OCD.

As to how you treat this, I advise you take each symptom on a case by case basis, then go with your gut and revaluate a couple of months in. You'll find that talk therapy is generally recommended only as a supplement to ACT or CBT, but if you're also dealing with more generalized anxiety, or have a strong belief that your OCD is being fed by specific emotional difficulties or life events, I think it can help a lot -- assuming that you can find a skillful therapist, who lists experience in anxiety disorders, and is also a good personality fit. That's always the trick.

I recommend shopping around a little bit. Look up the basics on different schools of therapy, and go to an intro session with a few likely therapists in the area and just tell them up front that you're speaking to multiple people that week, and that you'll be making a decision based on personal fit after the fact. The best way to find a therapist is if you're personally connected with a practicing psychologist and can get a recommendation through them. In local professional circles word tends to travel about who's really on their game.

Finally, I should also say that when I've experienced the kind of wide and overarching health anxiety you're talking about it's often been related to difficulties and periods of transition in my life. So it wouldn't hurt to take a step back and ask yourself if there's anything you can be doing in the mundane day to day sense to take extra care of your mind, whether that's diet, exercise, sleep, stress, or anything else.

Best of luck.

Thank you very much for your reply !
As stated before, doesn't really sound like irrational fears, but they are exagerated fears.

Finally, I should also say that when I've experienced the kind of wide and overarching health anxiety you're talking about it's often been related to difficulties and periods of transition in my life. So it wouldn't hurt to take a step back and ask yourself if there's anything you can be doing in the mundane day to day sense to take extra care of your mind, whether that's diet, exercise, sleep, stress, or anything else.

This resonated particularly with me. Even if I can still feel some fear and anxiety, I feel infinitely better and stronger compared to when I had the breakdown, therapy and introspection also helped a lot to notice that I'm living I life I unconsciously left to bring me where I am instead of taking decisions. So I find myself in a difficult transition where I'm taking actions to change, it's damn hard and I still have many problems I had back ago (job I didn't like but was the only one when I found myself alone with no incomes from day to day, some financial problems, distance from loved ones etc...). I'm just starting exercise and yoga, as you suggest, maybe it will help in this period to find more strenght to reach my targets (hm! targets! I never had before, this sounds cool )