Don't forget that on WW
we count points, we aren't calorie counters, and points are made up of a combo of fiber, fat and calories. Some nutritional elements absorb faster than others, and that you may have indeed absorbed some of your food points even if you were ill. As a result, I think that accounting for them is important, because the general principle of counting all the points prevents one from overeating. If you don't know what you have actually absorbed, then you don't know what you can accurately add to it.
If this happend to me as a one-time incident, not requiring medical attention nor hospitalization, and was pretty much over once it started, I would count the points so that I would be on track for the week. I know that even if I get an upset stomach after I eat and appear to eliminate a whole bunch of stuff from my GI tract (which happens alot if I eat at other peoples' homes or if the foods have a high fat content), I won't make up for it by eating more points. I DO have some WW vegetable soup, with zero calories, though, if I feel hungry between my bout of GI upset and my next meal. This way, I can eat something gentle and healthy and digestable without adding to my overall points for the day. And if I am really hungry, I dip into my Flex points for the week. But I account for it, just to be on the safe side. I don't view these incidents as a licence to have a second meal, nor some ice cream...but that's just me.
Ms. Kaplods, if you like I can send you some WW info about points and how we account for them here. We really aren't calorie counters, as the system works just a bit differently. I'll be happy to send some links your way if you are interested.

Kira