Come clean to my gym about steroid usage or no?

I came off steroids a few months ago and transitioned from bodybuilding to muay thai around the same time. I’ve lost a lot of muscle in my upper body in a short period of time and people including the coaches are asking questions and talking behind my back. One coach has been asking me about why I lost so much weight every time I see him and makes poking comments at me in front of the class about how I forgot my muscles today and stuff like that. It feels like they’re trying to punish me or shame me in a way. I’ve never sparred so it’s not like I was hurting anyone else by using them.

I’ve just been telling people that my priorities shifted from lifting to MT/running which is true but not an adequate answer for some people apparently. I’m new to MT so I don’t know how the culture is when it comes to steroids. I don’t mind telling people but I don’t want that to be my defining characteristic: “that guy who used to be on steroids”.

What would you do in my situation?