is it just me?

Does anyone else get sort of a feverish feeling mid-afternoon on on-plan days?

It doesn't happen all the time...but when it does, it's usually on days when I've eaten less than 15 points before 3 pm and worked out over lunch. All afternoon my face is hot and I get chills and/or hot flashes. Usually chills. Like today--it's 70 degrees in here, I'm wearing two sweaters, and I've got goosebumps.

I'm wondering if this happens to anyone else, or if it's just another sign of my body's extreme messed-upedness.