Please help cycle problem

Hello I've noticed this a couple of times now on cycle. I'm currently running tren ace eod and test 400 2x a week.
I've noticed that my muscles look smaller and depleted than they did before cycle... this is not normal as im eating a huge amount and I know my gear is reliable. I was wondering
Could this be down to high estorgen? Or any other factors it's real starting to annoy me as I should be feeling at my best but I think I look worse than off cycle! I have arimidex on hand
I can mainly notice the muscle mass lost in forearms and arms

I can't explain your loss unless you are dropping bf wat is your bf? and I see you are running 800mg test and only have Adex on hand and not using it? Not a smart thing how about HCG?