Our flock of 9 just started laying, only 3 laying so far. One of our hens (maran) has been looking big, not super bloated or anything but mature. We figured she should be laying any day now. Tonight we saw her laying in the yard with her tail pointed up. Similar to what the hens look like in the nesting boxes when laying. She is what we call a special needs chicken. When she was a chick she wouldn't stand all the time and wanted to sit. Since she has grown she seems better and is a active part of the flock but still clumsier than the others. So we figured she was getting ready to lay and was just being goofy about her spot. She laid there for 10-15 minutes, the got up and walked a ways. She sat back down and just wasn't acting right. She went into the coop for the night and we started researching what may be going on. We went out to the coop to see if anything was strange. She was sitting on the floor of the coop now with her tail in the air again(usually everyone is roosting). When I looked around the coop there was a egg on the floor with a very soft shell, and we could see the yolk through part of the shell that was missing. We cleaned up the egg so no one could get it. the flock is around 7 months old. Should I be concerned there may be more eggs up there? She was still sitting goofy after that egg was on the floor, and her comb seems to be falling to one side just a bit. Her color is still good and red. My question is what do I do next. We took her out of the main coop and put her in the garage in her own pen. We got some tums and crushed them up, mixed with water and feed some to her. We put oyster shells in her pen, and some water with vit & electrolytes. We felt around but don't really know what we are feeling for or where. She feels soft not hard. Once we put her in the pen in the garage she started making a nest right away. Thanks in advance for the help!