I researched this. It sounds like the kitten got a fever and they may have some type of illness. I would take her to the Vets
My kitten is 4 ¾ weeks old and she has really hot pads (bottom of paws) and they seem to bleed some times. I'm scared and don't know what to do cause I just lost her brother this morning. Can you help me?
I think, it could be some health problem with her that's why his pad is hot. You should take her to the doctor for vet. It will be ok.