How Can I Treat A Long-term Ulcer And Gas Problem That Causes Frequent Flatulence And Embarrassment At Work?

Hi, I have been suffering from ulcer for 3 years. Also i have gas problem, sometimes I fart frequently. I saw a few doctors but my problems was not resolved. Before I was worked from home. Now our asked me to come company. I m feeling embarrassed to go with this problem. Can you help me to get out this problem please