Hello Felicia!
To be honest this is really the first time I've ever heard of anyone getting an air bubble trapped in her sleeve. I've been around a long time too - and in the lap band community as well. I'm definitely NOT saying it can't happen, all I'm saying is it doesn't appear to be very common.
I use a straw every single day, in fact was given use of them during my hospital stay after my sleeve surgery. I never once had an issue of any kind with them. That said, this seems to be a big debate for all types of WLS. Always follow your surgeons advice when doing anything, of course.
The very best way to eat, and especially close after surgery is to take minute bites or sips. You won't know how your new sleeve will react the first time you try anything. In fact, you can sometimes try something one day and your sleeve won't like it the next. Every single meal is a new challenge. Also on the flip side, if your sleeve doesn't agree with something the first time, give it another week and try it again. Chances are good you will be fine the next time around.
It is an excellent idea to start learning how to eat like a sleever and practice. Never hurts...
One last thing, as with any major surgery you might want to expect some pain to some degree. You will likely feel tired and it will be a bit difficult to sip your fluids, and it will also be tough to transition to solid foods. Just take your time and make the most of it. The first three months will be the time where you will lose the most weight, so the struggling is a great trade off!
All the best to you!!!