First Day back working and so distracted

Hi everyone. My first day back at work was today after surgery on the 9th. I work a desk job from home. Problem is that today for the first time old habits crept in. Any time I got up to male something to eat or get something to drink I guzzled or gulped it down like the old me. Now everything I consumed was within my plan but I think I ate and drank too quickly as I wasn't concentrating on the meal I was concentrating on work. Didn't take breaks between mouthfuls etc. Just as I finished up this evening I started feeling cramps in my stomach and salivating. 3 hours later it's ongoing and won't go away. I'm not vomiting, haven't had a bowel movement. Can hear my stomach gurgling like crazy. Just waves of cramps and mouth watering. Should I be worried?