Velo, I'm worried about coming off meds too. I have made 2 or 3 attempts to come off them over the past five years or so and each time the return of symptoms has made me go back to my maintenance dose. I agree about untreated depression/anxiety being worse for ttc - stress is one of the biggest factors in failing to conceive for a lot of people, I'm convinced. And stress hormones are arguably as harmful to a foetus as anti-D meds. It really is a question of taking it slowly and doing whatever you can to avoid depression recurring. I find exercise works wonders, it's like taking a happy pill
But I have to overcome my natural laziness first.
My BMI is about 19.5 - 20 too and have suffered with underweight in the past, which really adversely affects fertility. My BMI has dropped to about 16.5 on occasion (directly linked to depressive episodes). I also had an ED in my late teens which caused my periods to stop completely for about a year. Thankfully I recovered completely from that, but I occasionally wonder whether it has had any lasting effects on my reproductive system.
I feel well at my current weight, however, and I know I'm eating enough good stuff. It is slightly alarming how much weight I lose when I stop tippling, it really makes me feel I've been overdoing it
Chocolate is another matter though