[ Nico will wait to continue any conversation until Palamedes is back, setting things down where he can. ]

Maybe it's the length of time spent in the water? I've gone in several times beyond the times I went with you.

[ With people he just met, but he doubts it was anything to do with them. ]

Random is also a possibility. I've noticed that not everyone gets hit with the same things. Other people have talked about swapping bloodtypes, but I haven't yet.