Ditto what Paul and Christine said. Do NOT be shy about using all the resources available to you!
On of the things that frustrated my husband the most was not being able to do his normal tasks and activities at the usual level during treatment and recovery. Remember that your body is putting a lot of energy into dealing with the treatment itself. Your most important job is to complete the treatment as specified - especially to try to keep to the radiation treatment on schedule and get at least another one of the evil cisplatin bags under your belt. Your body hates it - but the cancer hates it worse!
Best wishes and keep posting. You are helping patients and caregivers undergoing treatment that are not comfortable posting themselves.
Maria