I got drunk for my first time just to try it out and chugged four and a half or five Pabts Blue Ribbons (I had never had a full beer before and I'm a lightweight, it seems. I don't even like beer at all and will never make such a silly mistake again). Nothing crazy happened, I just got drunk and babbled like a goof, vomited a bit and then went to sleep. In the morning I had the typical grogginess from a hangover, but ever since then I have felt sluggish and off. I've also been having trouble with feeling slightly dizzy and off balance; every so often when I'm walking or doing something I will feel like leaning to the side and stumbling.

I should add that two days after the hangover I took a trip where I only got five hours of sleep for two nights and didn't notice the problem as much because I assumed it was just the sleep deprivation, but it seems to have gotten worse after I got back. I also feel a little disoriented  and my motor skills overall seem to be affected.

Any idea what is wrong? because I don't see anything I did that should have caused anything like this.