I've always been a gifted belcher for a woman and it decreased after fundoplication surgery in November but has gotten stronger again itself and IBS-C is a gas causer itself but after fundoplication surgery not only has frequency increased but long drawn out ones which are more entertaining are now common and normal for anyone who gets that life changing procedure. My one cat's face is a common place to release them simply because it's funnier and he doesn't care. I an a woman who is highly entertained by things like that plus moving around in different ways can change the pitch and make it funnier.