Cat weeing in the bath

[corinewmoon]

My 7 year old Birman has just started weeing indoors. She has always gone outside in the past ( cat flap) . I assumed she was weeing in the bath because it's been to cold weather . Today I caught her weeing on a my bath room rug ( right in front of me) . It's not that cold now the snow is melted . Why is she doing this and how do I stop it?

Normally cystitis/UTI apparently. We were given anti-bs and a painkiller drop when we took our cat.

She has also done a couple of poos in the bath as well

Time to keep the door closed. Ours have weed in the bath but not pooed... How odd.