does anyone experience this?

gday fellas ,
has anyone experienced the following.
i play football and we train for 2 hours per session, before the session im reasonably happy feeling alright , then we train , and then as training wears on until after its finished , its like im completely unable to think , theres zero happiness or energy in the brain , may aswell be a vegetable in terms of thinking. its like just pulling the chord. it returns after about an hour, but the initial period after training , its like being a total shell , completely unable to hold a conversation, its like ive completely drained myself of whatever dopamine stores i had .
everyone else is happy and carrying on and having a great time. i know its the brain recovering , i was addicted very young around 11 , so ive been addicted for 22 years, im currently on a 9 month streak, but its amazing the damage the brain has been put through and the slow recovery process.
anyway cheers for reading , just wondering if anyone else gets this feeling after extreme physical exertion .
keep fighting the good fight

 

cheers for comments , im actually feeling ok , slowly getting through paws, by doing all the right self help things. even a gym workout i feel good after, but what im meaning is if you totally exert yourself in a 2 hour period of intense exercise , is the only time i get this brain dead feeling for a little while lol.