Hi Angel. You're correct about the 'hangover' after eating carby food - and the 'carb bloat'.  When we've been in ketosis for a while a sudden influx of carbs can make us feel rough the next day - however I wouldn't have thought your hospital food would have been as carby as the average binge!  Well - my average binge LOL.  I used to get face bloat, too.  Not nice.
I've had to up my calories to 1200 as I've got 'flu and have just started on antibiotics as my GP suspects I may have a bacterial infection in my chest.  So I didn't weigh last Weds, nor did I weigh today. I'm hoping to go back on TS next Wednesday.
Look after yourself, and concentrate on healing and getting stronger.  Things will be much easier once you're home again x