re: regularity. Have you tried just plain prune juice? Get the smallest jar, dilute 4oz w/ 4oz water and wait a couple hours after drinking. Be at home though! My mom, a nurse, used this plenty around our house to help 'reset'. If nothing after couple hours, try another glass, same dilution but then stop. It can sneak up on you, if you take too much.
I saw that you like Pepogest. I love that stuff too. Heartburn could be just anxiety related too. Be feeling better soon! (I enjoy reading your journal, by the way take care)