Not getting drunk enough! Help!

This may be the wrong sub, and if so lmk and I’ll gladly move it around! But I’ve been STRUGGLING to get drunk lately, and I can’t fathom why. For context, I’ve been sober for probably two months and have decreased my drinking habits significantly prior to that. My tolerance should be at its lowest right now. Recently, I decided to have a few drinks and get drunk again. Normally, I would stop after 3 shots of 90 proof. That would have me comfortably drunk. Last night, I had closer to 5 or 6, and hardly felt it at all. Barely slurring, still able to walk and stuff. NOT as drunk as 3 shots would normally get me. The alcohol has been close capped on the counter and I can’t imagine it would have lost a significant amount of potency. Does anybody have any clue why I’m not getting as drunk as normal? Is there anything I can do to GET MORE DRUNK??? I’m on the smaller size physically and drinking very much more gives me one hell of a waterlogged tummy. Thank you reddit ❤️ and happy drinking