Suffering from severe headache in the area of the left forehead above the eye including eyebrow. Do you think sinus?

Yes. The frontal sinus is there. If you don't get relief from otc sinus meds I would see your primary care doc.
Yes or Glaucoma. The frontal sinus is located directly behind the eyebrow. Alternatively, a glaucoma attack or chronic glaucoma may begin this way. I would advise you to consult an ophthalmologist right away and then see an ENT doctor.

Related Questions

After taking head bath, I suffer from severe headache. I have sinus problem. How to relieve from this.

I am not sure. What a head bath is, but try an over the counter pain reliever such as naproxyn, ibuprofin or tylenol (acetaminophen). You may have allergy problems. Good luck.