Hi, I ve been wearing glasses for over 20 years and I ve never had this problem. I m getting headaches every time I wear my glasses. And it starts with a throbbing pain behind my ears then I get a horrible headache. I thought that maybe it was the pressure from the glasses behind my ear. I have 3 pairs of glasses and they feel loose behind the ear but I still went ahead and had them stretch out where I bought them. They put them under a heating machine and stretch out the part that goes behind the ear. Even after that I still have the same problem. It s a horrible throbbing pain. And one of those pairs that I have, I ve had for 2 years and it never gave me this problem. Now all of a sudden I m getting these headaches. I need to figure out what is wrong because I can t see without my glasses. Thanks, Sue