Why do I feel like doing things when I’m drunk?

I do not abuse alcohol regularly but I do recognize when I’m on a bender it is much easier for me to actually act on my desires. For me normally the thought of doing something, anything, is easily observed and let go without a care. I suspect that there are other mental health problems at play, and I do luckily have an appointment with a psychologist next month. The only exception to this is anything immediately requiring of action. Going to work, cleaning something obviously dirty around the house, doing some project my wife asked me to make a top priority, etc. Anything else, even something that I want to do, is impossible for me. That doesn’t feel like the case when I drink. Even things I know will lead to a problem like not exercising enough or not brushing my teeth. Sometimes this leads me to very drunkenly exercising and weightlifting which I know is probably dangerous given the weight I can lift. Essentially if it’s not a problem right this minute I don’t act on it but drinking some how makes me able to.

My questions mainly are, if you have insight on this why does this happen and what the fuck is up with me normally when I don’t drink? And also, should I mention this to the psychologist when I see them next month? I’m worried it will come off the wrong way, but also it might help them understand where I’m coming from.