What Causes Metallic Smell And Nose Bleeding?

Hi, im having real problems with my nose, eyes and throat, i seem to have an odd ammonia smell (sometimes taste) in the back of my nose, which worsens whenever im bending over, my nose has produced blood stained mucus and my eyes are crusty and puss-y first thing in the morning, and on top of this i have the WORST throat ache ive ever experienced, Ive never inhaled substances (eg. glues or drugs) and it has come on after having a cold, any ideas?