You might find some of the FB groups worth joining.
There’s one called Kicking Aromatase Inhibitors Out although it’s quite American.
I wouldn’t feel bad about quitting AIs esp with your other health worries. Around 45-50% of people stop. Even as BC survivors we’re more likely to die of heart disease or dementia than we are if breast cancer. That’s one of the reason I went back on HRT (after ER+ breast cancer) to help prevent those two issues and osteoporosis.
There’s also a group Life After Breast Cancer on FB.
If you can get hold of it Oestrogen Matters by Avrum Bluming is a great read and might help you. It was a life saver for me. I managed to get a copy out of my local library.
HRT will likely reduce your risk of stroke as it’s a vasodilator and also lowers cholesterol