So i have bi weekly contacts, have been wearing them for maybe 2 years without much problems. For the past week, every time i put them on, one or both eyes seem blurry than after maybe 15 minutes they start to sting when I blink. I have changed contacts correctly, every 2ish weeks and these ones are brand new. When i put in daily contacts that I usually use when I go out for vacation, they are perfectly comfortable. I havnt been wearing contact at all for a week and I just try them on in the morning to see if my eyes are better. Any help?