Since I moved in with my grandmother she’s looked awfully strange lately also a decline in mobility. Her face stays pale and often imagines things and mistakened the remote control once for the telephone and thought she was conversing which was the first red flag once I had moved in. She has complained with her heart bothering her for sometime now and the doctors always say her heart sounds fine but we know differently. Her eyes look afar off and in one eye I can see a white dot but I try not to stare or she’ll notice me looking. I don’t know what to expect or what she or I am facing.
My 90 year old mother was recently told her heart was "fine" but she has congestive heart failure. What the doctor meant was "fine for someone who has a heart that is failing." He was able to give my sister a more accurate appraisal of the situation with my mother out of the room.
If your grandmother has allowed it, you may get a better idea of what you are dealing with if you speak directly and frankly with her doctor. The doctor's office might be able to suggest resources for you and your grandmother to keep her home and comfortable.
Then, If you're able to get her to the doctor (and feel free to employ a "therapeutic fib" to get her there, like the doctor called her in for an annual check-up, etc. While there discretely pass the doc a note to perform a cognitive exam and a test for a UTI besides checking her for the other concerning symptoms you mentioned. Also ask the staff for a Medical Information Release form and have your grandmother put your name on it and have her sign it. This will allow the doctors to tell you wants going on medically with her and they can receive any info about her that you know. You can't exchange medical info with her doc without being the designated rep on this form. Good luck!