My weight gain is a result of eating more calories, maybe because I feel better.

I've gained considerable weight while being on Lexapro yet I don't have much of an appetite. Thinking perhaps I've outgrown the Lexapro. I'd be interested in getting that special test.

I haven't switched over to the Lexapro yet, but know a side effect with it is weight gain. It makes you want to eat more. Same for several other SSRIs like Paxil. Notorious for causing weight gain.
https://www.webmd.com/depression/features/antidepressants-weight-gain#1

Thanks for sharing that. Yes, some SSRIs are notoriously known for weight gain, including Lexapro, I've read. Feel well! (Me too!!) : )

Yeah, you're probably right. Glad you're feeling better. Thanks for sharing that! May we all feel well! : )