JEN,AS USUAL,HIT THE NAIL RIGHT,ON THE HEAD.
THERE ARE MANT THINGS,OF A MEDICAL NATURE,THAT CAN HAPPEN,TO AN UNSPAYED CAT,BESIDES PREGNANCY.
AND I THINK,AT FIVE,THAT HER PURRSONALITY,IS PRETTY SETTLED,AND SPAYING,MAY CALM HER DOWN,A BIT,IF THERE IS ANY CHANGE,AT ALL.