Kathy, I'm including a link that will help you with information on LPR or Laryngopharyngeal reflux:
I had this as well as regular reflux; this is considered a silent reflux because the symptoms are different than GERD; the damage, however, can be pretty bad. The chances of damage to your lungs through aspiration are greater with LPR than with GERD as well as the damage to your vocal cords. The good news is that once the disease is under control, the vocal cords will start to heal and further damage to your lungs will stop (if you have this issue).
You need to follow the same self help steps as someone with GERD and if you find that you are not getting better, then get to a very good GI Dr. who can help you. The diet may help, but if your LES is floppy or weak, than acid, regardless of diet, will still get up into your throat and do the damage that you are now aware of.
Have you had a GERD work-up yet?, have you seen and ENT? or a GI?, perhaps both? If not, I would encourage you to do so.