I woke up this morning, and I wasn't feeling up to par. My nose is partially congested, my lips are EXTREMELY chapped, and my skin just feels unhealthy and generally dry. My sister has a sore throat and I think she may be getting a cold, but I haven't been around her that much. So, am I catching a cold? Are those symptoms of a cold or fever? If so, will over-dosing on vitamin c prevent it from making things worse? also, is a sudden appearance of acne (breakouts) a sign that I may be catching a cold as well?