You don't need to see a doctor to figure out why you've been feeling so sick lately. All you need to do is check out the chart provided by Health.
It'll help you figure out if you have a cold, the flu, or a sinus infection. All three of those respiratory infections are similar, but there are a few big differences that can help you figure out what's really wrong.
Check out the handy chart right here:
Now you shouldn't have a problem figuring out what type of infection has gotten you down. Has this chart helped you out?