It's a horrible feeling, and I am sorry you're going through it, lalalabp. Menstrual cycles are THE WROST when it comes to dysphoria. Everything feels wrong, you feel wrong, and the anxiety it brings... I'd like to never go through it again.

It sounds like your binding in the most safe way possible. Please, PLEASE do not bind with an ace bandage, tape, etc. They cause rib fractures and deformation of the chest wall and it's all so dangerous. They do have FtM binders (gender fluid people use them too, I am genderqueer and I use mine) but they are expensive. There are things called Binder Exchanges where binders are donated and sent discretely to people who are in need of them. If you'd like, I'll look into an open one right now and provide you with a link.

If you ever need to talk gender stuff, I'm here to vent too. Please take care.