By the way, I've stopped the Fortekor for her heart (atrial hypertrophy) - it seems there is no evidence suggesting that it actually works.
https://www.veterinarypracticenews.com/ace-inhibitors-march-2020/
I'm really worried about her heart just now - her breathing has been quite fast, I've been giving her furosemide, which helps (it's a diuretic which reduces the fluid building up around the lungs). But if it gets much worse, the diabetes will become her lesser problem. I don't want her to suffer a long decline and gradually suffocate - if the breathing gets bad, and the furosemide doesn't help enough, I think I would have a vet come to the house, for her to be PTS. All they can do besides furosemide is take her into the vet hospital and remove fluid with a needle from her lung sacs. This would be hideous for her, she hates, HATES going to the vet. I also don't have the money for hospitalisations, but more than that, I just don't want to inflict it on her, when the inevitable course of it would be decline, and more procedures, more often, till she dies.
I really hope the furosemide will be sufficient for some time yet. She's here on my shoulder, pointedly purring (her subtle request for a late night supper)... so she is doing well right now. <3