For the first time I've had my eyes tested at home. Two very smart men came in a van with huge cases on wheels with equipment. They did all the tests I would normally have, they were on time, they helped me choose new glasses and the cost was the same as I'd pay at opticians. It took just about 1 hour. I also phoned the hospital and asked if I could have my heart review by phone rather than going to them. They sounded a bit shocked and unsure but this morning phoned at 10.15 on the dot. I check weight, b.p., heart rate, oxygen level each day and keep a diary of episodes. So I was able to give the info they needed and as I'd had a blood test they had those results too. It went very well ending with some minor adjustments to meds.
The moral of my story is that when you feel really exhausted don't cancel appointments but look at other ways of monitoring your health. My husband on two occasions ended up locked in ward with no visitors due to a virus. I don't want that!