hi all , I hope somebody can help , my female cat is pulling her fur out on her tail and around her legs for some time now ive been to the vets many times with this but they have not come up with any ideas at all. sometimes she stops and i think her fur is coming back but then she starts again. now my male has started doing it also???They are both in doors cats and are frontline wormed every month ,no signs of any fleas or droppings at all???They are both very happy cats and love each other ,sleep together all the time, so no stress. any ideas on this would be very helpfull.THANKS