Little silkie is setting for sure. Not sick. She pecks when I reach in & she comes out a couple times a day to eat and drink. Checked her and she looks fine. I'll put a fan on her if she needs it. Had another silkie set at this time last year and only got 1 chick. It's been 100 or nearly that & with a hen's temp and that I don't know how they do it. I was thinking about bringing the whole nest box from the porch to the kitchen.
I understand moving the nesting box could cause a broody to stop setting. Rather than moving her prop her nestbox lid open and drape the opening halfway with a tarp or towel depending on how large her nestbox area is - that way she will still have some privacy but there will be enough cross ventilation while she's nesting - might be better than a fan draft blowing on her. That's excellent that she's coming out to eat and drink. Our Silkies brood so hard we have to remove them gently a couple times daily and put them down in the farthest end of the yard so they have to forage and dust-bathe for exercise before running back to their nest. GL with your girl!