Noticing small changes can nudge you into paying attention to potential problems. Of course, it’s vital not to let symptom-spotting get out of hand: Trivial signs are often just that. It’s when they persist, or are combined with other symptoms, that they become important. If that’s the case, see your doctor.

6 Signs Your Cold Is More Serious Than You Think
The common cold is a viral infection of your nose and throat (upper respiratory tract). It’s usually harmless, although it might not feel that way. Many types of viruses can