Thanks for all the replies. I think we are going to call someone. Unfortunately not sure if there are any other pipes since they are inside the walls. All I know of is what I drew in the diagram.
First a history of the house. The house I live in was originally my boyfriends grandfather's. It is very very old since my boyfriend is 41 and his grandfather past away many years ago. Never had a problem with the plumbing until now.
About a week and a half ago, my drains and toilet were...