If I touch my finger to my lip , my lip senses precisely how cold the finger is. About 82 F compared to 94 F

Here is interesting anecdote. I have always been able to tell my own temperature by rolling my eyes upward and feeling if there is a discomfort. The degree of discomfort relates directly to how much fever there may be. It works to within a degree.

I used to get a cold numbness in one thigh or another and a doctor said it was tight pants/belt syndrome so there is some history of vascular constriction and wild guesses by by doctors.
Come to think of it, Migraine is in part a vasular constriction.

My finger and thigh is somewhat better today, cold but not icy. Putting a lot of awareness on an issue often seems to help.

A 15 soak in a hot tub is a good but short lived fix.

Upset? My only conscious emotional upset is the passing of summer.

I bet if there was a blood clot there would be a lot of pain instead of a very minor ache.