I'm class I on top left, class II on top right. I also have an overbite and crowded teeth and narrow arches--top and bottom. My orthodontist is recommending headgear with the Invisalign (vs. rubberbands). I'm 51 years old and have never worn braces before. Should I be concerned about the effectiveness of the headgear? The physical part doesn't sound too fun, but I'm willing to do it if it's the best option. I'm a stay at home mom, so I'm not worried about the appearance of the headgear.