Yes, some really runny poops. Perfectly normal in a molting chicken. I always have apple cider vinegar in their water [helps with gut health] & you could add vitamins ~ which is pretty much what that stuff is I'm adding to their feed @ present & why I'm doing meal worms regularly just now too. I do corn occasionally ~ heats them up a little but too much is bad, bad, bad!

Someone else may have good advice too.
EDITED TO ADD: One thing that did concern me was Namaste going off on her own & just lying down somewhere all day. Now her pin feathers are coming through she is doing better. And she slept in a nesting box for a couple of nights but I thinks she roosted too late & wasn't able to jostle for a position on the top roost. I noticed she roosted early last night & had a prime position in the middle of everyone! The antisocialising was when I decided she needed a little help with this molt.