Warm side- 93* is too hot- much safer to use a thermostat & keep it under 90* (some say 88*) So that might be adding stress- but also burning more calories, which is why she might be on the 'slender side'. Young snakes tend to shed a little more often too, but growth requires enough food.
(note: while I think this chart may promote feeding a little too often, I think you're not feeding often enough.)
Humidity can be a real challenge, & paper towels don't help. You might want to fit in a "humid hide" to help her.
Without seeing her enclosure, it's hard to say if she has as much privacy as she needs. BPs tend to like covered sides/back & "clutter".
Would help to post pics of her- she might need to eat more often- hungry snakes can be cranky. This chart may help:
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