Soaking, non-feeding, and failure to thermoregulate (staying in one place and not moving for abnormal periods of time) may be some signs that your bp is stressed. Bad sheds can be another sign that your bp is stressed, but this time of year in North America makes shedding a chore for them anyway.

A happy bp will feed normally, move around from hide to hide (you may or may not observe them doing this), and shed in one single piece. Give you bp a thermal gradient starting at 94 on the warm side, and 80 on the cool side, with a hide on each side and a bowl of fresh water in between, with humidity around 55%, you'll have a happy healthy ball python.