Reducing or stopping meds is a difficult decision. I have been on ADs for like 9 months. Things are going very well, and my doc and IC suggested lowering the dosage. BW was understandably very concerned.
I made sure to check in with BW more than usual. And I made sure I took a good inventory of myself. I have been looking for any little return to depression.
I think that the BS gets a gut feeling that things are slipping, even if they cannot put their finger on any specific thing. It's almost like a deja vu. The mood or vibe or whatever you want to call it seems familiar.
For me, I found that I was slipping just a little. I had to work a little bit harder to avoid withdrawing into depression. So I bumped my ADs back up to where they were. It might have been OK -- after all, everyone has to work through things and react in a healthy way. But right now, I don't have any margin for error, and I don't want to fall back.