For the last couple of weeks I have had sinus problems that have included both eyes watering and being closed in the morning, chest cold, sore throat around the adams apple, and now when I cough because of the mucus in my chest I feel a pain in my stomach and also in my nut, its not a sharp pain but a noticeable feelng.I've been on moxacillian for about 2 weeks now. Age is 60, height 5-10, weight 310, healthy except the once or twice a year sinus problem that has never been this severe.