Or it may want its food inside a hiding box for seclusion. It may want something different, like my Burmese python that loved pigeons and hated rats or my corn snake that loved pinky rats but wouldn't take a mouse. If a live adult mouse frightens your snake, try a freshly killed one or a live pinky. Cutting open the belly of a dead mouse produces a blood smell and a wet area that help to stimulate feeding. If nothing works, try to find an experienced herper for help.
Force feeding is traumatic and only a last resort.
Every one to three months a snake sheds its skin. The eye is cloudy for a few days, then clears, and the skin is shed a few days later. Shedding takes only a few minutes, once the old skin is rubbed loose at the lips. Most snakes refuse food during this period. Sometimes not all of the skin is shed.