It's WI spring but I suspect my partner suffered heat-stroke today

The temp was only about 73F when she went out for a walk at 1 oclock this afternoon

She says had on her "light" winter coat, underneath she was wearing a full wool sweater over a heavy flannel shirt and a cotton tea shirt.

When I got home here at 3pm, she was complaining about feeling REALLY Sick, it took a long time to get descriptions of what symptoms were involved. After pressing for answers it turns out she had a slew of heat stroke symptoms... agitation/irritability, complaints of earlier having sweated heavily on her back, but actually feeling cold when she was sweating, dizziness, and finally flushed appearance of her face and nausea which were the primary problem when I found her...

I went over what she'd eaten to try to get an idea if it was food poisoning. she'd had bran flakes and milk at breakfast and then a piece of nectarine tart.

I checked her temp... 106.8, heart rate was normal, BP was a bit low (112 over 80) for her. I didn't seem like bacterial or viral infection...

So, with much argumentation involved, I finally got her to take off of her heavy clothes, and got her to drink some water and lay down.

Now 2 hrs later things seem to be resolving.

This of course scared the hell out of me.

She's getting bad about what seem to be common sense things like avoiding over-dressing.

I really don't know what to do.

I make her promise to talk to her primary care doc about these things, but I have no confidence she does.