Yes, alcohol can be quite dangerous when you are taking drugs that affect insulin production (glic). It's quite possible you had a hypo, especially with such light food. The fact you didn't take your tablets at that particular time is probably a blessing in disguise as they might have made things worse. I could be wrong, but I don't think drugs work just by individual dose as they can build up in your system so would still have been affecting you at the time you were drinking. I think there are probably other posts around the forum about the effect of alcohol on BG if you search.