Left side of face is hurting. Feels like a Sinus infection but smelling a foul odor everytime I bend forward. Is that normal for a sinus infection?

Your description is. very consistent with a sinus infection. It would be important to treat this quickly and effectively as serious sinus infections can progress rapidly to more serious central nervous system infections. See a health care professional as soon as possible or go to an ER for evaluation and treatment. .