In any event, it’s important to drink a lot now. If you, like me, am feeling any of the above, you have to keep cooling the body and mind (tell more about it tomorrow) throughout the day. Seeking shade, using hat, taking baths/showers, cooling food like coconut water, coriander for example.
Here is a cooling drink which also works as fluid-replacement.
1/4 Water melon, two dates, loads of fresh mint, a pinch of salt to balance loss of sodium.