What causes eye floaters, metal taste, jaw cracking and left ear ringing?

TMJ CRACKING. You need to have your eyes examined by an ophthalmologist(eye doctor) and your ears by an otolaryngologist(ear doctor) to make sure there are no problems from them.The jaw cracking is from the jaw cartilage being out of place and when you open the head of the jaw bone pops onto the cartilage causing the cracking sound.Since the jaw joint is in front of the ear it will cause the ringing in the ears.