You have a Wizard site. Are you by any chance making the classic mistake of editing outside Wizard, then "publishing"?
Or has this problem just been server problems over the last few days?
As for leaving Bravehost, you have a Wizard site! So the problem, unless the answer to question 2 above is "yes", is likely to be a Wizard problem. Your Wizard pages aren't going anywhere, so you would have to start from scratch. And you are perfectly free to use a real editor instead of Wizard here at Bravehost.