I have h.pylori infection in my blood I have used medicines like omeprazole 40mg one tablet and flagyl 400mg twice in a day but still I feel iritations like short of breath, racing heart, acidity when my stomach is empty. Please suggest me any good medicine treatment so I can get well soon.

It would be foolish and dangerous to diagnose and/or treat you over the Internet. Make an appointment and go back and see your Physician.