I have been having pain in between eyes and nose for 3 months now. I have tried artificial tears and nasal spray but hasn't worked, what could be wron?

Sinus headache. Sinuses are empty spaces around the eyes inflammation in sinuses can cause pain radiating to the eyes. Consult your physician to do a sinus x-ray and treat.
Sinus congestion. Your symptoms seem consistent with sinus congestion. Consider using nasal decongestants or antihistamine allergy medications. If your symptoms do not decrease, consider an ears, nose, throat consultation..