You said..."gut loaded from Petco"...I wouldn't trust any petstore to properly feed or gutload the insects. I'd do it myself. I feed/gutload crickets, superworms, roaches, etc a wide assortment of greens (dandelion greens, kale, collards, endive, escarole, etc) and veggies (carrots, sweet potato, sweet red pepper, squash zucchini, etc) and a bit of fruit ( berries, melon, apples, pears, etc).
you said..."I supplement her with a dustin of reptile vita vitamin D"...the recommended dusting are a phosphorous-free calcium powder at almost all feedings, a phosphorous-free calcium/D3 powder twice a month lightly and a vitamin powder twice a month.
You said... "In the past she was a very strong eater . She has a very big belly and large fecal deposits now she has not eaten in 10 days" ...has she ever turned dark in the background? Tried to dig in the pot in the cage? She might be gravid.
It's recommended that you have an appropriate egglaying container (opaque, at least 12" x 12" x 8" filled with moist washed playsand) in the cage of all egglaying females to help prevent eggbinding because they can lay eggs without having mated.