I've found that the things I noticed going into a flare are the same going out...just in reverse....does that make sense?
The very first thing I noticed when I started symptoms was excess gas, then the feeling of needing to go but can't, then mucus, then blood. So going out of my flare the blood left first, then mucus, etc.
I'm sure this isn't the same for everyone but that's what I"ve noticed.