I've a 13.5 year old lap cat who about 2 months ago started with horrific bowel leakage - we thought we'd cracked it as we found her thyroid is over active but 6 weeks on (and thyroid stabile) she's still as bad. They've done bloods and ultrasound (which showed spots on kidney / liver and inflamed intestine) The vets suggested an hypoallergenic diet to see if that settled it - it hasn't at all other than piss her off big style. I'm awaken every night to her putting it in her mouth and spitting it out. She absolutely hates it. She hates me dabbing her bum but she's just dribbling out all the time. I keep washing her bedding, if she sits on your knee you need to wash the clothes. She's constantly cleaning herself - She's still purring. I'm a great believer (after leaving our last dog far too long) in the better earlier than later camp until it's your baby !