Vodka Waters

How has vodka water treated you? For me, it seems to be the only drink where I’ll blackout quicker and never get sick. Keep in mind this is when my tolerance was high. One example is I spent $50 on $7 vodka waters within 2-4 hours at July 4th pool bar and blacked out way too early. It seems any other liquor, beer, and even vodka sodas will get me sick before I end up blacking out. I just turned 30 years old. The irony for me is that I choose vodka waters in the summer for most part because I was really into fitness and at peak shape, so was advised vodka water is the way to go. In the past I would do vodka red bull sugar free and still not blackout. My whole drinking life always had me getting sick if drinking too much as I was never known to blackout. Thoughts?