I don’t feel alcohol, is this a common thing?

I have an anxiety disorder and the idea of drinking always stressed me out but recently I’ve tried it to see if it’s really that bad, the thing is I feel nothing. I am barely 90 pounds (I’m just built that way it’s unfortunate I know) so I assumed it would not take much but I was wrong, four cans of beer— nothing. five cups of wine? also nothing. I know I haven’t had anything really heavy but I’d assume I’d feel the ones I already listed (and I don’t want to drink anything heavier bc it’s likely I wouldn’t feel it and then I’d get sick from having too much). anyways is this normal?? I’m a girl and 20 years old.