When someone has a medulloblastoma tumor in cerebellum and they lay in bed all day will they have a headache and be sick cause of the swelling?

Medulloblastoma: Medulloblastoma is a malignant brain tumor that originates around the cerebellum or coordination center. The tumor can spread through the spinal fluid pathways along the spinal canal. Children are affected 10 times more commonly than adults. Sleeping and laying in bed can cause increased brain swelling resulting in headaches and vomiting. See a neurosurgeon for treatment.