Lost vision

Hello, today I had a small can of a Jim Beam Coke highball (I’m in Japan, it’s basically a canned whiskey and coke) and after drinking, I was standing and completely lost my vision. Everything was blurry at first, but then I lost my hearing, and everything went black. My eyes were open and I couldn’t see. But I was still partially awake. For a little bit, I could see people’s outlines, but everything looked black and static-like? And a little bit of white too. I lost control of my body, was drenched in sweat, and had to lean on a pole. I couldn’t see anything at all for over ten minutes.

This has never happened to me. I’m really scared and have no idea why this happened. I didn’t even finish the can, and I have drank in the past and this has never ever happened. Is this… Normal??? Should I be worried? What do I do?