<human>: Summarize the given text in a few sentences.

So I used to be able to hold my liquor pretty well. All throughout 4 years of college, I'd had maybe two hangovers. I blacked out maybe a few times. I was able to drink a lot and not suffer from it and so I prided myself over this.

Recently, however, all that appears to have changed. As recently as 6 months ago, I was able to keep this up. But now it seems as if my body's reaction to alcohol has drastically and suddenly changed on me. It's not even so much that I'm getting hangovers the morning after drinking, but rather I get to feeling hangover-y later during that same night of drinking. 

And the blacking out is pretty alarming. I'm not even drinking that much but it seems like I blackout at least a little bit most of the nights I drink. A couple times it has been pretty creepy the next day and even if I remember stuff, most memories from that night of drinking fade pretty rapidly over the course of the next couple of days.
<bot>: I used to be able to drink heavily without consequence but suddenly I find myself unable to function after only a few drinks.