Oh, I forgot to mention, the max stamina consumption over time is a newly added mechanic to prevent players from skipping sleep. Maximum stamina can be gradually restored through resting and sleeping. This mechanic is also updated in God Mode.
As for the difficulty of the swallowing QTE, I adjust it dynamically based on the strength of the one being swallowed, the strength of the one doing the swallowing, the size of the one being swallowed, the stomach capacity of the one doing the swallowing, and the belly sizes of both. So if you try to swallow prey that is much stronger than you or bigger than your stomach capacity, it will indeed be quite difficult. However, when you mention higher difficulty, you might also be referring to situations where the prey escapes because there isn’t enough time to complete the QTE right after catching it (for this, you need to be ready to rapidly press 'space' during the chase). I plan to improve this by adding a temporary time extension at that moment, or maybe adding an easier difficulty option later on.
Thanks for your feedback!