YYour right about that on both sides of the coin but you should try a good diet though in a suffer of anxiety and also have a small hernia and I've got a great diet that in on in pretty well staying about my same weight but ill tell yeah there's slot of stuff that you just can't eat even though you may want it just let me no if you want to talk about it and i can help you with it
Purging will be MUCH MUCH MUCH worse for your health. Will you lose weight? Sure, but you are going to gain it all back unless you plan to purge for the rest of your life which is HORRIBLE for anybodys health. I can't begin to explain all the negative health effects that this can cause.
It might help you lose a small amount as well as give you nasty teeth and prob reflux/heart burn... I really don't want you to think I'm cheeky but that's the harsh reality of it.
Your best way to lose weight healthily is a balanced diet and lots of exercise xx