It's not that I have trouble getting the high notes, that's usually not a problem. The problem is after I play really high I feel like passing out. This is mainly a problem in high school jazz band. I have times that I would never know whether I would pass out or not from a high note at least 3 or 4 times a week, though I never really have passed out, but have come EXTREMELY close and have the feeling that I don't know if I'll be passing out or not. But that was a week ago, now that we got in this new song that has me up to E flats and has about 30 high C's, I about pass out 4 or 5 times daily on that song, I never feel so great after that class gets over. There is this part where I'm a background for a solo and play nothing but high C's through the entire solo, that's what gets me a lot. Another part that has caused trouble is when I have to hold that high C for 5 measures. That part was when I got an enormous headache and came my very closest to passing out. That was the only time that I hadn't fully recovered better in 2 minutes to my normal self, I felt terrible for the rest of the afternoon. Most of the time I just about pass out, it goes away after at the very most, 2 minutes and I feel normal again. That song is bad news, even though I can take it down an octive (well, I could take it down two), it so tempting when you actually see it on the page. I was just wondering if these things are normal for lead jazz trumpet players and whether or not I should worry about this.The problem is that I don't know if I will have problems from playing the high notes until about 2-3 seconds after I've played it, I never have these symptons while playing EVER. High notes never usually bother me unless I really have to hold them or they are the majority of the song. My lip can take more that my head can. I was just wondering what I should do in order not to have any more of these experiences. I have all the information I need on mouthpieces, I was just wondering if there is some kind of high note trumpet medicine that you won't pass out from playing high. Thanks.