yes l have had heart burn in the past but have taken protonix with out any problems, lately I have heart burn every day that is intense, I have not changed my diet, I feel very bloated in upper abd, and have gained 10lbs in a month, not have changed a thing in my diet/exercise routine, Im 54, healthy and active. Im 5 2 was 148lbs for ever now over 160lbs. What the heck?