Hi there and welcome! - christine's questions are right on. Knowing answers will help, try not to worry too much yet - The swelling could be many things not necessarily cancer - possibly infection? Lymphedema? Have they done a biopsy of the area? Laying down and the headaches - I wonder if it's related to pressure from the swelling? talk to the Drs. Share your concern. Push to have them start the chemo and rads, soon. Please keep us apprised of what's going on. We're here To listen and help. Take care!