I have had my adult cornsnake for 3 months now. She is 40 inches long, unsure of how old. She has been so easy to care for and hold. I usually put a large adult FT mouse in her viv and within seconds, she is out of her hide and eating. Two weeks ago she shed for the second time (a complete shed), I waited a couple of days past her weekly feeding to offer her a mouse. She sniffed around and refused. I waited another week, offered another meal and she refused. She also has be extremely active in her viv. For hours a day she is climbing up the sides, pushing on the cover. Her viv has remained constant, temps ranging from 75 to 85, aspen bedding. Is she going through a "stage"? Could something be wrong. Should I keep offering her a meal every week? Thanks in advance for any advice.