You possibly have a cold.. It could suggest something else but a cold comes to mind first
You have a viral infection.
it means that you should see a doctor
I believe what is being referred to here as "flem" is really phlegm, or the thick mucus that comes from the mouth. Green phlegm can mean a sign of an infection such as a cold or flu, bronchitis, or some kind of allergic reaction. Usually any kind of colored phlegm can be a sign of an infection so it is advisable to visit a health center or doctor if one has persistent colored phlegm for prolonged periods of time.
Mean Mr. Mustard was created on 1969-09-26.
Mustard has a sharp or keen taste. "Keen as mustard" means being sharp-minded.
Someone may have given you a (tiny) tablet of methylene blue which has this effect - amusing but harmless.
mucus
mustard gas
Red mucus is just spotting before your period is about to start. There is normally mucus that plugs-up the opening to the cervix and around menstruation it can be carried out with menstrual flow, the blood is your menstrual flow.
The phrase "can't cut the mustard" means to fail to meet expectations or standards, or to be unable to perform effectively. It suggests that someone or something is not capable of achieving the required level of performance. The origin of the phrase is somewhat unclear, but it likely comes from the difficulty of cutting mustard, which is a metaphor for something that is challenging to accomplish.
Presuming you mean mustard plants, then presumably, yes. They only need moisture to grow.
In Art chiascuro is strong contrasts between light and dark. the word itself comes from the Renaissance for 'drawing on colored paper'.