This might sound rather strange but I had a habit of suppressing my "bright emotions" whenever it came up.

You know, the "bright emotions" that you have in your head when you have an idea, understand a math problem, think of a great plan, or have a revelation.
"AHHH" type of feeling. It usually feels like an emotional flow.

I am guessing it might be dopamine release feeling because I used to have it whenever I accomplished something.

I think I suppressed it because I didn't want to get prideful but stay humble - but this "habit" became almost automatic so it has progressed to suppression of all kinds of positive emotions. For example, I don't feel any flowing of emotions with all these Christmas lights, songs, and spirit.

This happened about 10 years after the brain injury.

Do you think problem is due to brain injury or a bad cognitive habit?