I can’t seem to get drunk

I used to be fine drinking any alcohol but I couldn’t seem to get passed the slightly tipsy phase, one day I decided to do 8 shots in 5 minutes and ended up throwing up. I quit drinking for a while because the taste of most alcohols make me feel sick. Recently I’ve been drinking again and all I have is tequila which I hate. Shots make me gag like crazy and most cocktails taste bad. Despite this I’ve tried doing shots and drinking tons of cocktails but all I can get is a little tipsy. I’m 5’9 130 ibs so there’s no way I shouldn’t be feeling it. Another thing is it causes such bad stomach pain and nausea.