I felt and it isn't swollen,  but I'm starting to think it may be eggshell.
 I felt around her inside her vent with olive oil and nothing was there.
 She's just had a bit of banana and I gave her yogurt a bit earlier. She also had pumpkin seeds this morning . She's tired and only wants to be in her coop. I made her stay in the garden for an hour this morning,  to dry off in a warm breeze and grab a few greens.
I only have dried oregano,  but I'll mix this into some wet foods later.  Hopefully that'll help . Any other ideas anyone may have to share will be appreciated.