ckb, in P1, it's very hard to find any restaurants that serve food you can have...it's so easy for stuff to sneak in there that will mess you up, then you have to start over.
So, stick to things that are as simple as possible. Try getting a lean chicken breast with seasonings that don't have sugar (ask the waitress to check) and steamed veggies. Ask for olive oil to put on them for flavor. Or, get a salad somewhere that you can make yourself...some grocery stores have salad bars or you can look for a place like Souplantation, Fresh Choice, or other salad-themed restaurants. If that's not possible, get a salad from the menu and ask for no carrots, no croutons (or chips or noodles), dressing on the side, and make sure they take off anything else that's not P1 friendly. Make sure the meat on the salad doesn't have sugar in the marinade or the spices. For example--McD's chicken breast has sugar...all of it. So avoid their food at all costs. I believe Wendy's salads are safe, as long as you take off the things that aren't P1 friendly.
You can do this, chica!
Just stay strong...and visit a local grocery store to get some SF Jell-o and things for snacks...don't let your eating every three hours plan fall behind. In the future, try to bring food with, bring a cooler, and plan ahead by calling the hotel to see if there will be a fridge or a microwave (you might even be able to book a room in a 'suites' or 'extended stay' hotel for cheap...they often have an entire kitchen!
and know that we're keeping you in our thoughts!