OP, if you went to a boot-fitter and your new boots don't fit, then you didn't go to a boot-fitter.
In order to know if it's simply a new boot issue or a wrong boot issue, please answer these questions:
1. Did he do a shell fit? (remove the liner and look at your foot in the shell to make sure it is the right size & shape for your foot)
2. Did you get footbeds? Did he heat mold the liners?
3. Did he not tell you about how new boots should feel? And how to adjust the cables, etc?
Also, in the future, we have a thread dedicated to answering these questions:
https://www.newschoolers.com/forum/thread/768122/The-Official---What-is-wrong-with-my-boots---Thread