It's a pretty common thing. When I did more in-person pro sessions, I never felt it that much. I'd usually leave the dungeon on a high and almost immediately want to session again. After a day or two that would go away and I'd be back to normal. But I've done some online/phone play that is way more psychological in its direction and with more humiliation. I've definitely experienced some heavier sub drops there, actually. The woman I play with in that area is pretty good about bringing me out of those if I reach out.