I just got my fg 5000 silver and green winning headgear and I'm starting to think I got it in a size too small. I use the fg 2900 in large, but my coach told me to get my next headgear in medium. so I did, now my headgear is either too small, or I'm doing something wrong. My forehead absolutely aches if I have this thing on for 30 seconds. I got punched lightly in the face with it and the chin strap sortve chokes me if the headgear moves back. the headgear also makes no contact with my cheeks, just my forehead. also it's extremely stiff, everything about it is stiff as a rock. the main thing is, can somebody explain how to put this thing on without having so much pressure against my forehead?