The first one’s tail looks like some kind of worm attached maybe? I’m not sure tbh I haven’t seen that before.
Eggs can come in various colors, the two illnesses (fungal and parasitic) that I know of that affect the underside of the abdomen like that are either white and fuzzy or green and micro plant looking. I can’t quite make out in the photos if the yellow/orange color on her underside are egg shaped, if they’re eggs she’ll be fanning them.
Kentaii 
The first one’s tail looks like some kind of worm attached maybe? I’m not sure tbh I haven’t seen that before.
Eggs can come in various colors, the two illnesses (fungal and parasitic) that I know of that affect the underside of the abdomen like that are either white and fuzzy or green and micro plant looking. I can’t quite make out in the photos if the yellow/orange color on her underside are egg shaped, if they’re eggs she’ll be fanning them.