Are you sure you have H Pylori? My first posts on here, nearly 2 years ago, were because of horrible post-mirena acid reflux and heartburn. I got tested for H Pylori but it was negative. If you snoop around a little, you'll find that lots of ladies developed reflux and heartburn after mirena was removed. The esophogus is hugely affected by chages in hormones (one reason why heartburn and reflux occur in pregancy) I am lucky, mine pretty much went away after about 6 months, and only comes back every once in awhile during my period.
If you do have H Pylori you can treat it, which is great!