Yes, the headaches are true. I spent many years wearing braces. They make hygiene difficult and there’s always something wrong with the gums. They are hard on the tongue, too, as in sharp and all, and on one occasion, my tongue actually got caught in an awkward position and it took a while (and some stress) to get it in order. If you can get something no less (or not much less) effective without the problem with pain and hygiene, that’d be great - it’s a decision based on your finances, basically.
If that can make you feel any better, being less able to do your job, or having to pause to deal with pain, or even buying painkillers and special means of hygiene, or say, emergency consultations with dentists, all such factors can have a monetary dimension. In the end, it may prove that the less troublesome solution is less (or not much more) expensive overall.
BTW, as far as regular braces go, it’s possible to do it without much metal. There are ceramic locks and the wiring may well be some transparent hard plastic. The rubbers can be transparent too. Some people go for e.g. metal & green, others may well go for white & transparent. By the way, probably anything that makes your teeth grow in some other way they normally would is going to give you pain.
Not that I’ve never heard of the invisithingies unless I’m mistaken.
Edit: I’ve taken a look at some pictures of “invisible braces” - don’t know if that’s how Invalisign works. It seems the idea is to put the locks on the inside, which I’ve had some experience with because it was necessary in my case (double-sided locks or whatever it was, I don’t remember precisely at this point). As I see it, they could become more of a pain that way - especially if you have a big tongue. With what I’ve just seen, I’d never go for invisible braces, just the normal ones.
And I haven’t noticed people being mean to or put off by people with braces.