My cat is 9yo, unneutered moggie who lives inside. She has recently started leaving quite large wee spots where she has been sitting (was on bed linen, windowsills, back of sofa etc until we started limiting her roaming to one toweled out room). It happened the first time about 6 weeks ago, vet suggested cystitis and gave medicine which she took but it had already really cleared up by the time we got her to vets ( had to wait a week to get an appointment I could get to). It has now come back with a vengeance so will be heading back to vet and suspect they will suggest cystitis again. Does that sound right or could it be something else? Really want to sort this as poor kitty is very restricted in her one room but I can't let her roam with this er... problem. Have attractive picture of spotting on bed linen if anyone thinks it would help to see.