The heat blew away this evening, rather as it did a week ago. Then I went back to a flannel nightdress for sleeping but one doesn't do flannel in June. Maybe a t-shirt and hoodie?
ETA: now isn't that interesting. This time when I google 'inner thigh cramp' I come across a forum of people with exactly my symptoms, including that 'getting up off the couch' one. (Except they all have right leg cramps.) Caused by dehydration, they say, which makes sense; tonic water's quinine will work for some, and pinching the skin between the thumb and forefinger. Heartening also is their claim that nothing is as painful as a thigh cramp 'including childbirth'. At least I don't have the urge to vomit as many of them do.