Emetophobia warnings for series 4 and 5?

I've watched the whole series through once and now watching it again with my daughter. She has emetophobia (fear of vomiting) so I've been looking up each episode beforehand to check whether anyone throws up or comes close (we've skipped a couple of episodes because of it).

I found a pretty good guide for the first three series, but now we're on series four and there's less information online. I thought this was the best place to ask if anybody know if there's any vomiting/extreme gagging incidents in these series? Any information is much appreciated!

[ETA] Thank you for all the informative replies, my daughter and I both really appreciate it!