Could acute sinusitis include just facial pain, terrible headache /forehead sides &back of head&neck, pain behind eyes, heaviness in head? I've these?

Definitely! Time to see your doctor if you are experiencing this myriad of symptoms related to your acute sinusitis, so you can get some relief. The sinuses are located behind the cheeks (maxilla), above the eyes (frontal), midline and deep into the back of the nose toward the brain (ethmoid, sphenoid). So, the referred pain pattern as these areas get congested is throughout the head, face, neck.