I am a new cat forum member and would be very grateful if any other cat forum members have experience with my cat’s new, odd behavior. In advance, I apologize for the length of my post. I am not usually so long-winded, but I am very concerned about this wonderful, little guy. My two, altered, male rescues are 10 years old and have been with me since babies. One of the boys, Kobe, a shy, classic mackerel orange tabby, has recently adopted a very strange behavior that is puzzling me. Since adoption, Kobe has always been a characteristic “scaredy cat” temporarily hiding under beds when the door bell rings or guests visit and even retreating at times when somebody whistles a tune or he hears the sound of loud garbage trucks passing outside the window, but when the house was quiet, he could be a total lover boy sitting on my lap, purring, sleeping comfortably throughout the night on the bed near me. About 3 years ago, Kobe stopped going into the enclosed garden area and became a housebound fellow due to house construction next door. The few trips to the vet have always been traumatic for him but fortunately they have been very few. Regrettably, on Sunday 2/26, I had to take Kobe to the emergency vet fearing he had an urinary problem because, for the first time, I saw small spots of urine on a pillow where he naps, and I noticed Kobe had been hiding under a chair for a full day --- clear signs of trouble. The weekend emergency vet ruled out an immediate crises, but we agreed I would take Kobe to my regular vet, an extremely sensitive practitioner, early the following morning on Monday 2/27. My vet confirmed Kobe’s urine test pointed to cystitis but fortunately a comprehensive blood test showed otherwise healthy results. A Convenia injection was given since Kobe is extremely difficult to give anything by mouth due to his edginess. Other than being sleepy for a few days, Kobe responded well slowly showing improved health. He is now eating regular, hearty meals; grooming himself; using the cat box. He allows me to pet him, purrs gently, rolls over. However, here is the baffling puzzle. Kobe absolutely refuses to leave the bay window in my office where he sits and sleeps on large oversized pillows. He quickly slinks out once or twice a day (usually at night when the house is quiet) to use the cat box, but quickly comes back to his pillows literally running down the hall to return to security. I have started bringing his food to him mostly to ensure he was eating especially after his illness, although, before his illness, I sometimes had to bring food to him since his 24 pound Main **** brother, Mr. Baby, would often try to eat his food and muscle him away if left unsupervised. Before his illness, he (and his brother) would spend part of the day sleeping in the office bay window, but Kobe would move about the house into another favorite window perch in the den and into my bedroom at night for sleeping. Now, since this recent illness and 2 visits to the vet, he absolutely is stationed 24-7 in the office bay window with no visits to my lap when I am reading or watching TV in the den, no trips to bed for his nightly sleep, no visits off the bay window pillows to my work table (adjacent to the bay window) to sit next to me as I use the computer. I have a narrow, totally screened-in "cat run" off my kitchen, and I found him and his brother out there on two instances in the middle of the night suggesting he possibly moves around when all is totally quiet. Otherwise, Kobe, is totally stationed in the bay window and shows no signs of leaving it or reinitiating his past one-on-one interaction. I would appreciate any ideas on what is going on here. Thanks for reading this. Again, sorry for the length.