I don't know what it is, but I feel like I can't play very high, and my teeth are hurting a little after I play. I just had some chapped lips a couple days ago, and I used some chopsaver to get rid of them. My lips feel really weird, like they can't "work" to play the trumpet. I can't feel them tighten or loosen when I try to play high, it just feels like leather. Can anyone help me?