Eddi is 6 years old. Had her since a kitten. She does go outside but has always used her litter trays for toileting and prior to this week had no accidents. She has two trays that sit side by side. Normally uses them both. This week I noticed she’d only used one so took it away and left the clean one. She never used it but peed in the corner instead. Cleaned them both but she didn’t use either and peed in the corner again. Anyone any idea what’s going on? Apart from that she seems fine though she is an anxious cat anyway.