After installing profile2 while moving a site from D6 to D7, I tried adding a few fields to the default profile. Everything was fine until I saw that all the new fields had disappeared. I figured I had removed them somehow so I went to add them again. When I go to manage fields, it shows no fields have been added yet. I tried to add one back and it says I can't add it as a new field because it already exists. None of the fields I had saved before are listed in the "Add existing field" box. I've tried uninstalling a couple of the last modules I had installed, but it still won't let me. Also, none of the profile fields are showing in /admin/reports/fields. Any advice?