Don't worry about falling from grace.
I got a wicked virus a few months back and Mom's chicken and dumplins are the only thing I felt like eating. I didn't gain either.
So don't feel guilty.

Get yourself well and then resume this WOE.
Whatever you gain, if any, will be water weight.

Take care of the body, it knows what it needs right now.

Hope to hear you are feeling better soon.

Be blessed,
Tanya