First, apologies for not being able to find the list of symptoms/conditions to answer, I will try my best to remember from other posts I've read.
I brought a point of lay Sussex hen a few months ago who has finally started laying in the past week. First, I noticed that she consistently did watery poos - I have seen her do 3 solid ones to date (and I'm watching). Her first egg was "angular" and large with a rough shell and quite large. It was also white, although Sussex hens are supposed to lay orange eggs, so I put this down to "first lay attempt." She's been in the box a few times since then but thismorning I found a broken egg in there. It has a paper thin shell on it (no doubt her weight would have broken it). So at this point I'm a little worried about her functions.
I have 2 other chickens (leghorn and barnevelder), who are perfectly fine; all eat the same food and hang out together. I noticed on another post somebody with a similar problem noted their hen drank a lot more than the others, and I have noticed this with her as well; she'll stop eating to go have a drink, then come back and start eating/regurgitating (only once on the ugg boot, lesson learned).
They are completely free range birds, but they get fed laying mash several times a day (small feeds due to bush turkeys). The only other thing worth mentioning is she has a pretty dirty ass, to be honest. I tried to give it a hose today (as I've lost one to being flyblown previously), but that really only resulted in me wearing her watery poo
I've seen a lot of suggestions about adding grit to her feed, but all my chickens have eaten the same feed and none of the others have had a problem, so I'm really just trying to work out if there's something possibly more serious going on here.
Any advice would be appreciated.
I brought a point of lay Sussex hen a few months ago who has finally started laying in the past week. First, I noticed that she consistently did watery poos - I have seen her do 3 solid ones to date (and I'm watching). Her first egg was "angular" and large with a rough shell and quite large. It was also white, although Sussex hens are supposed to lay orange eggs, so I put this down to "first lay attempt." She's been in the box a few times since then but thismorning I found a broken egg in there. It has a paper thin shell on it (no doubt her weight would have broken it). So at this point I'm a little worried about her functions.
I have 2 other chickens (leghorn and barnevelder), who are perfectly fine; all eat the same food and hang out together. I noticed on another post somebody with a similar problem noted their hen drank a lot more than the others, and I have noticed this with her as well; she'll stop eating to go have a drink, then come back and start eating/regurgitating (only once on the ugg boot, lesson learned).
They are completely free range birds, but they get fed laying mash several times a day (small feeds due to bush turkeys). The only other thing worth mentioning is she has a pretty dirty ass, to be honest. I tried to give it a hose today (as I've lost one to being flyblown previously), but that really only resulted in me wearing her watery poo

I've seen a lot of suggestions about adding grit to her feed, but all my chickens have eaten the same feed and none of the others have had a problem, so I'm really just trying to work out if there's something possibly more serious going on here.
Any advice would be appreciated.