Sinus Headache or Migraine? - Southern California Sinus Institute. Sinus Headaches - Symptoms, Causes, and Treatment - WebMD. Sinus Headache or Migraine? How To Tell the Difference. Sinus headaches - Symptoms & causes - Mayo Clinic. Sinus Headaches: Symptoms, Causes & Relief - Cleveland Clinic. What type of headache do you have? - Harvard Health. Migraine, Sinus, Cluster, Tension, and Stress Hea..