when you are on omeprazole, how quickly does it heal or at least stop one's symptom?

It might be best to see a doctor to confirm what is actually happening.  If you are having chest pain still, there could be something as simple as costochondritis (inflammation of a rib - usually harmless but uncomfortable) or something serious.  The rule of thumb is, when in doubt with chest pain, don't wait.  Omeprazole usually starts to help within a couple of days (2 for me).  If you've had chest pain continuously for that long, I would go to the ER - now!  Or call your doctor.  A couple of  times I had chest pain that didn't quite feel like reflux or muscle pain.  Once they did an EKG right in the office - I was fine. Another time, he said it's probably costochondritis.  He could give me a cortisone shot, but it wasn't that bad, so I went home and took Celebrex.  (You could try ibuprofen or something like that...)  Mine was gone the next day.  I get it occasionally, it comes and goes.  But steady chest pain - get it checked out!!