What wrong with my eyes?

for 3 months now I have been having eye problems. At first I tought it was pink eye. So I took my contacts out and went to the doctor 2 times and got drops. My eyes still turn red very often. I haven't worn my contacts in 3 moonths. A lot of times they are so sensitive to light and wattery that it is hard for me to even drive. So I purchased allergy drops. Now my vision stays very blurry. If its not pink eye. And its not allergies. What is wrong with my eyes?