Can you have mild alcohol poisoning?

Just spent the past 3 days (Bank Holiday Weekend) in Dublin, Ireland. Smashed down around 20+ pints each, each day. It was beautiful. The final morning before flying back I was a complete wreck. Sweating, vomiting, unable to eat, stomach was awful, could barely open my eyes, vertigo/dizzy and wanting to pass out. Nothing like any hangover I have ever had in my life. I’m the life of the party every day, but this knocked me out.

I’ve been back since Monday evening and I’m still extremely foggy, conversation skills are currently fuck-all as I forget what I’m talking about or end up zoning out. My body is aching, I’m still nauseas, got a terrible cough and keep dry-heaving over the toilet/sink.

Is it possible that this is a mild case of food poisoning at all? Is there anything I can/should actually do about this?