Reflux is something else. Again, this is a very common problem. Reflux is where they get typically a burning sensation, and that burning sensation tends to travel up towards the neck area, and it tends to get better when they eat something or when they take an antacid. And it tends to be worse after they've eaten a big meal or lie down. It's very variable.
Some people say the indigestion's made better when they take an antacid like the reflux group.
Other people say nothing makes it better. It's very variable and unfortunately not helpful in working out what's really going on. Because everybody gets it at some point in their life. People have been looking for the bacteria, which we can do, and then treating the bacteria if it's present, hoping that the symptoms will get better. And of course if nearly one in two people are carrying it and don't know it, you might just be finding it by accident.