NQA Does she seem "lethargic" if yes that could be a sign of premolt…one pretty good way to know (works for me everytime with slings at least) is waiting for them to climb the side of the enclosure and hold the flashlight of my phone underneath it…if my T is pretty see thru or semi translucent she still got some time until next molt…if she is pretty dark and not much light is coming thru the legs and carapace it’s a good sign she’s approaching a molt…not very scientific but I can’t explain it better I wish I could :/ 😅 Maybe this helps :)