having high temps and feeling cold are too different things - think of when you have a fever when your sick - you can be sweating, but shivering at the same time wrapped in a duvet!
i felt really cold last week - and just couldn't warm up til i was in bed!
Try not to worry too much, but keep asking questions and asking for reassurance as much as you need it, i;m sure we've all felt the same at some point and will know how you feel!