Originally Posted by
Pilotpip
Go work out. Get your heart rate up and hack it out. You'll feel horrible the rest of the day but better soon.
Actually, this might not be such a good idea. If you have a fever or even the common cold, your heart rate and blood pressure is in an elevated state, and while working out could even put more stress on your heart. The temporary rush of endorphins might make you feel better, but could cause things to be worse in the long run.
For example:
Should you work out when you're sick? - CNN.com