Clean or overused? You should probably rest your eyes from wearing the lenses for a week and try them again. You may have a scratch there. Make sure you are cleaning them and using a protein remover wash? Also don't over use them if they are disposable. You may have to change to a different style or brand.
Normal. A mild amount of irritation with contact lens insertion is normal. It typically lasts less than a minute. Irritation that is severe or lasts should cause you to remove the contact lens and seek professional help.