Everything in moderation has been my food motto for a long time now. Nothing in excess makes sense to me.
Our medical model encourages us to think that there are quick fixes to all ailments. Not true! Some will take a long time for our body to heal itself.
As for GERD, I get it whenever I drink an extra cup of coffee a day for three days - 2 1/2 cups is too much coffee for me!
I seriously doubt you got an overdose of vitamin A from eating peppers though. Maybe try making sure you also get some magnesium? I hear that helps assimilate calcium.