Yeah I've never had a hangover even though I have been known to drink myself stupid on many occasions, I've even gone to work the day after drinking all night. It's also quite difficult for me to actually get drunk, it takes a lot of high proof booze to get the job done. I remember trying to get drunk at a christmas party one time & even with free drinks I could not get drunk, it was probably for the best because I wasn't in a very good mood that night anyway. Tequila will make me a bit ill, but that happens even if I just drink a little of the stuff, good thing I don't really care for tequila.
Sadly I haven't gotten drunk in a long time, I don't have my drinking buddy anymore & I've never found a replacement for her.