I got roped into having dinner with my girlfriend's family at the last minute and got really anxious there even though I've known them all for years - heavy headed, very uncomfortable, even a bad eye-twitch (I don't seem to get the racing heart, can't breathe type of panic attacks). Then I sat on the couch and drank a six pack of IPA and watched the sopranos, played video games for a little while. My girlfriend doesn't drink so I think it still counts as "drinking alone". Somehow my girlfriend tolerates me drinking every night (among many, many other things that most would not put up with) but I'm not sure how much longer her tolerance of my problems will last.