Hey - you were sick - give yourself some slack and forgiveness. carbs are VERY good at one thing: healing. So you may have done the right thing by eating some easily digestible carbs. Jello and toast were reasonable choices in the circumstances. Shakes are a good thing to start on.

Now think about:
Poached eggs.
Custard - LC if you use Splenda or other AS, & heavy cream.
Baby food is great for a recovering stomach - no added sugar or starch, already pureed and cooked. Go ahead & have strained chicken, green beans.....

Was the bad thing you ate a carb thing? If so, then the LC gods have had their revenge.

You'll soon be back on the wagon and losing again. Hope you are feeling better.