Hi a have had a Stimson for about 7 months she has always eatin well as soon as I put a mouse in she has snapped it up but 4 the last 3 months she will not eat. Her tank was getting wee bit cold so I uped the heat blubber and het mat she is still looking healthy as fare as I know and is happy 2 cme out wn offered but will still not eat. Should I b worried and if so wat cn I do 2 get her 2 eat ?