I started a bad cold a few days ago. They tend to start out mild, get worse until it's awful, then they improve a bit, and then they get markedly worse again for a few days before they fade out by around Day 10. It's so long since I've been healthy that I can't remember if this is a normal pattern for a healthy person but I don't think it is. Does anyone else have this? Do we know what it means? Does it offer any kind of clue to what is wrong with us?