Samantha,
I'm sorry you've found yourself in this situation, but as you're already discovering from this site, you're not alone. To emphasize a point that Nelie made, I would strongly recommend that your mother be seen at a major cancer center (if she's not already). Since you're in Boston, which is where I received all my treatments, feel free to send me a private message if you want to ask questions specific to this area. There are also several other people regularly on this site who had their treatments in Boston more recently than I did, and can probably give you suggestions as well.
Cathy