I have had burning in eyes, headahe, imbalance now for about 6 weeks. All started after cold? Could this be from sinus blockage? Help

Yeah, it could be. :) The imbalance is probably due to your ears being congested, which would be because of your sinuses, as well. Take some Sudafed or Advil Cold/Sinus, etc...see if that helps. :) Hot showers are nice, too. Sounds like an infection, maybe...you might wanna get an appointment with your doctor for some antibiotics. Good luck. Drink plenty of liquids--water, hot tea, etc (avoid dairy)--to thin out your mucus. :)

Yep I would say sinusitis or ear infection.

I agree sounds like a sinus infection, you could try some Afrin spray....this works wonders when I have sinus problems.