Some thoughts

[Raptor1]

Originally Posted by mapuc

1. Will the cake be there untouched?

Yes.

Originally Posted by mapuc

2. Will I see my self standing there drooling

Yes.

Originally Posted by mapuc

3. The bite I had eaten in the future, will it still be in my stomach or have it disappeared during my time travel

It'll still be there. In diverging timelines stopping yourself from eating it will not effect the original timeline in which you ate the cake. In a deterministic timeline you can't stop yourself from eating the cake no matter what you do. In an overwriting timeline it has already been determined that you've eaten the cake, so despite going back you haven't stopped yourself from eating the cake.