For the last 6 -7 months or so I have started to practice a lot 1,5 to 3,5 hours a day. I practice a lot of fundamentals and focus much on air, breathing and relaxing both the entire body and the lips.
When i practice i donŽt practice the high register for the sake of the high notes but a lot of exercises I practice have a lot of high notes in them. All my teachers have learned me to not tighten my lips to much, to have strong corners and a relaxed center and to use mostly air and pressure in my stomach, so this is how I play in the upper.
Today I have for the second time ever experienced pain in my stomach while playing long passages without in the upper register. The first time I felt this was while playing Neruda at a concert, in the second part of the 1st mvt. (bar 113 - 144). The second time was today when playing Buglers Holiday after the final note (c3) the tone it self was not a problem at all.
This pain seems to appear when i play long passages in the high register without breathing. But I think that it is strange because I often play and practice in that register with the same amount of pressure without any kind of pain. The pain is difficult to describe on a scale from 1-10 it is a 6 or 7 and i can handle quite an amount of pain. It is not intolerable but I felt like siting down, i got dizzy and for a second or two I thought i was going to throw up. The pain started to fade after a minute or two and was completely gone after 15 min.
I got a little bit worried when it happened today and I wanted to ask here if anyone had experienced the same thing. Is this something that will go away with time after I more experience and have practiced and played more? Should i schedule a doctors appointment just to be sure?
I will be happy for all answers!