Maryw, your description suggests possible migraine. Migraine can be confused with sinus pain, and pain in the neck and shoulders can be part of a migraine, too, and they can occur as you describe. Migraine is a comorbidity of fibromyalgia. Keeping a record of the pain type, other symptoms, frequency, what you do that helps or doesn’t, will help your doctor determine what type of headache you may have. Migraine.com might be a help to you, too.
I hope you feel better soon!