Well, My tub wasn't draining so I decided to try and plunge it and that didn't work but I did notice that when I did plunge it that is was bringing in water from the toilet. The toilet also started not flushing right. It would act like it is going to overflow but then it drains slowly. I am so lost!

Sounds like you have a blockage downstream from the toilet. This can be addressed in several ways.
1-pull the toilet and snake the line from there. **or**
2-snake from the lavatory roof vent. Put out enough snake to reach the base and 15 more feet. Good luck, Tom