My seven month old kitty had a genetic disorder when she was born, so we were told not to get her spayed until she had gone through heat for the first time. Well, we are pretty positive she is going through heat this week (odd meows, bottom in air/nose to ground/tail twitching, squirrely activity). However, it only happens occassionally. I thought when a cat was in heat that it was continuous? Is it normal for it to be off and on; maybe twice per day?