I have more troubles when it's colder outside, because of the difference inside and outside. One time in winter I came in the hospital walking, collapsed after a few minutes and went outside in my wheelchair. My friend who came with me said it was like I melted right before his eyes; my face got terribly droopy and my whole body got in the ragdoll fase in no time.
It's that "sudden" heat, radiator heat, which hits me hard. In cars too, when it's freezing outside and people sit in their cars they tend to put the heat up, I hate that because for me it's getting terrible weak for no reason at all!

I don't have much troubles with the shivering though!