Frankly, even though we have air conditioning and I do have medical permission, I'm scared. I'm feeling lousy even sitting in an air-conditioned office and drinking water all day - how will I be without water? Although the feeling lousy could be nerves.
A big rabbi has ruled that fasting is forbidden to any one with any condition who is trapped in the heat wave, but he's not MY rabbi, and it's not up to them - I just emailed my doctor. He's said I could fast, but it wasn't a heat wave then. Also, the city is reducing voltage, so our air conditioning is not working 100%. This is good- far better than a power outage and not having ac at all - but makes things harder.
Edited to add - Jed the doctor emailed me back. Given HCTZ and the heat - no fasting. I can deal with that.