Yup this is completely normal and honestly surprised you didn't experience this sooner as the reason for this is elevated prolactin levels. Prolactin is the hormone your body releases after you have an orgasm and creates the refractory period which allows your erection to go down and promotes bonding after sex (there are other hormones like oxytocin at play here too) but the point is 19nor derivative steroids like trenbolone are known to increase prolactin levels significantly in MOST men (some people don't have this issue apparently, but I think it's dose dependent so everyone has a dose where it WILL happen IMO).

You've received some good suggestions as the way I handled this problem was first and foremost making sure estrogen is in range as prolactin needs estrogen to proliferate, so knock down e2 and you'll knock down prolactin....to a degree... for me it wasn't quite enough so I added Proviron and within a few days I was GTG!

Proviron decreases circulating estrogen in the blood and has a nice blunting effect on prolactin, although I'm not sure about the exact mechanism of action.

Either way, that should do the trick, but if you're STILL having issues after adding that then you may need a dopamine agonist like GH mentioned. There are a few but lately cabergoline (dostinex) seems to be the most common. I haven't used that before and don't think you'll need to either especially now since you're off. Often guys running high doses of tren (600mg+) will add caber 2x week to their regimen. Hope this helps and as Duffer stated toys are never a bad idea although I prefer to get down and dirty with my god given toys like my tongue and fingers hahaha