I tried this a few months ago and it made my stomach burn. Normally I can drink a couple beers with no real problems. I've really had to cut back quite a bit because I have liver damage from years of drug/alcohol abuse. But trying kratom, I felt it wasn't giving me the desired buzz or maybe I expected too much. So I drank a beer and then felt a bit sweaty, attributing this to the hot kratom tea finally taking effect. Yeah I definitely think the beer helped it kick in.
Did you use the green or red vein? Either way, if I was to try it again I would take some milk thistle beforehand. (like 2,000 mg) I've read that this can help reduce possible damage to your liver. I don't think only having one beer would hurt too much. Without sounding too graphic, kratom gave me awful gas but at the same time helped with my IBS symptoms.