If you do taper off meds with the help from a PDOC, I’m sure they’ll help you think about what signs to look for when it comes to relapsing. They should also follow up on you more often to see any signs that you might have missed.
But don’t fear relapse. I know it’s scary, but it doesn’t mean you’ve failed as a person. It just means you weren’t ready to get off meds, and then you’ll at least know that.