Hi! I'm fairly new to this forum. Grateful it & everyone is here! I'm completely distraught. My orange tabby Taco (diabetic) has had this problem: for over 8 months now has an overgrooming problem. He grooms licks his fur incessantly. It's strange he does this robotically & doesn't stop. He also lick bites at his ankles, front paws all over his body. Then his routine is to lick bite all over his body & then growl attack bite his lower stomach, always the same spot. The vet has had him on hydrolized food, (potential food allergy), checked for fleas, & skin issues at cat dermatologist vet, amitriptalyne for potential anxiety, Gabapenten for pain, etc! Temeril P is the only medicine that relieved some of his itching over grooming. But his blood glucose was close to 500 so I told the vet & she took him off this. He has also had a life long problem with constipation at one time it was very severe. Vet thinks it's his serious constipation that is making him feel terrible and the over grooming, biting attacking & growling at his stomach is a how he is showing his discomfort from the constipation. Has anyone had this?