We just got our new glasses in January and I am having the hardest time getting adjusted to these glasses. I got two pair, one for distance and one for reading. By the end of the day I have a stiff neck, my eyes ache and my head hurts from the reading glasses. Anyone else have this problem? We were setting plywood over the vinyl in the kitchen so we can redo the floor and everytime I would lean over the glasses slip and I'd have to punch myself in the nose, then I have to readjust to see clearly, then they slip again. Sick of this.