
Donna as the others have said, you are not to blame for your cats condition.
Up until about 3 months ago, I had 3, 17 year old cats, they grew up together. One was on Fortekar for kidney failure for the last 3 years, and she passed away 1st, then another one had kidney and liver failure. I have one old girl left who (touch wood) seems to be ok and a 9 year old who is fine. My cats were in at night but out in the day. Our road is like a rat run so I prefer them to be in at night.
I was given an 11 year old female Birman in August due to her owner passing away (I was boarding her at the time). She is also on Fortekar for low grade kidney disease and has never set foot outside (yet!) She was always a house cat.
I have alot of cats boarding who are on kidney tablets to look after, all ages, all breeds, and alot of those go out at night in all weathers! Bladder problems are common aswell. I too, would have thought cats were more likely to face more hazzards in the day rather than at night.
Some of our customers cats who are diagnosed with kidney problems can go on for years being on Fortekar tablets. My girl was on the tablets for 3 years. The problem is alot of cats dont show any symptoms so the condition can be advanced when owners realise that they are not right. Cats seem to cope better with kidney/thyroid/bladder problems, whereas I think dogs tend to show they are not right far more in advance.
You are not to blame in any way shape or form for this. We all want our pets to live forever but unfortunately nature doesnt allow this and there is nothing we can do to stop it unfortunately.
Cats are very fickle and they are very much individuals and like to own us rather than the other way round :). So take no notice! :)