HELP!!! I think my tortoise is sick!?

DON'T listen to CrossRo. Feeding a turtle dog food is a normal thing, but it shouldn't be her whole diet. You'll want to put some live food with her. Do not force feed her though. My turtle has done this before. Minnie is just under sudden stress. Not being fed and given water for a while has made her uncomfortable. You can get her some earth worms and some meal worms. A pyramid shaped shell is from lac of protien. Stop giving her commercial foods(pellets, logs, sticks) and give her only meat for a while. Leave her alone and don't touch her until you see that she has been eating regularly. It may take a few days, but she will eat and drink. Give her some time, give her some space. Bring her outside into a gry area with not a lot of people and pets. She can get bugs there. Just keep a watch out for her. She should be healthy again with these steps in about 1-2 weeks. Don't panic.