hang in there. You are doing fine. Primary sinus lymphoma is an uncommon presentation of lymphoma that carries the potential risk of spreading to the brain. Usually these are more agressive lymphomas like a DLBCL. The good news is because they are agressive , they respond well to treatment. Treatment with chemotherapy and irradiation can cure many patients and the addition of intrathecal chemotherapy may reduce the risk of CNS relapse. For OTC sleep aids try an antihistamine (like Benadryl) or melatonin. See if you can find out the type of lymphoma.