My Right Eye Hurts Really Bad…please Help?

I have really bad astigmatism….and a few months back I got glasses.I couldn’t get contacts because my eyes are too small,and my eye doctor won’t let me use smaller lenses because the astigmatism is really bad.I wore the glasses every now and then,but I lost them about a month or two ago. I squint a lot…I have an appointment with the eye doctor next month….But I am feeling brief stabs of pain in my right eye.Is this just because I haven’t worn any glasses?? Am I in immediate need right now of glasses??