my cat is 6 1/2 years old and now is an inside cat, she has had numerous litter and i don't want her to have anymore but haven't got her fixed for fear she won't make it through surgery. 3 months ago i got another cat who now is 3 months old (female) and for the last 2 months my older cat has been in heat meowing all night and day driving me crazy. My question is why is she not coming out of her heats and what can i do to stop this so i can get a good night sleep from the up all night meowing