Mbo You said a practice chanter, right? Well, it's not possible to blow them for much more than a few seconds. If you can blow on it for 30 seconds, you're superhuman!! That's why the real pipes have the bag, so that you can breathe whenever you feel like it.

Don't worry about the lips, they're just not used to being exercised. But- even good, experienced pipers will get numb lips after a spell of piping, producing funny farting noices accompanying the real playing.

You may also feel a bit light headed after a while, because you are actually hyperventilating. But you'll get used to that. (In fact many people drink alcohol to get the same feeling! :))

Good luck, be patient, and don't skip the fingering exercises!

Magpie