Welcome, Caty. This is a great website for information and support. I'm sorry about your diagnosis. That must have been a big shock. Do you know what kind of cancer (NSCLC or SCLC)? Have you met your oncologist yet? Do you know what treatment he has planned? I think there are a lot of things that can be done to relieve your pain. I hope it doesn't take very long for that to happen.
If chemo is part of the plan, ask about having a port installed. That's an easier way to infuse the meds. than an IV in your arm. You might want to call today and ask how long you will be at this appointment.
FYI, If the type of cancer hasn't been determined, I think you should wait until that info. is available before starting chemos. Different drugs are used for the two categories of lung cancers.
Best wishes for your appointment tomorrow. Please, please let us know how it goes.
Muriel