He has no preference for sweets when offered any, though often tends to lean towards cakes > parfaits. This varies from body to body, however.
Occasionally, he will have ghost pains from times spent in previous bodies, and injuries sustained in times through those. You can’t tell me that Ginyu hasn’t had his fair number of near-death experiences and the loss of limbs, tbh.
Sometimes, he can figure out how to achieve transformations of some species, whether it be through extended time in one body, and figuring out how to tap into its ki, repeated experiences in one species, or even just swapping while the body is in its transformed form. Not that he always knows how to utilize it, but if anything, it makes for a good intimidation tactic.
Ginyu has absolutely no clue where his original body is, and only has very vague memories of the rich kid he had left it with. Occasionally, he wonders if that kid’s still alive.
There have been multiple occasions in his past where Ginyu had swapped bodies just because he had wanted some more cash.