How’d you convince yourself you don’t have sfi?

Hey all. I’ve been struggling recently with insomnia, this is new for me, I’ve never had sleep issues. I’m 28, healthy, working out for 9 years. Started adjusting hormones a couple months ago, and it seems it may have caused some insomnia. Unfortunately i suffer terribly with ocd (hypochondria) and adhd. There’s nights where I don’t sleep at all, or several days in a row. I’ve seen others in this subreddit say they struggled with the thought of sfi. If you ever suffered from the anxiety of this horrible disease, how did you manage to tell yourself you don’t have it?