persistant heartburn

i am 44 year old female and for the last couple of months i have been having heartburn. I have it every day and it is worse at night. i can relieve it with over the counter meds but dont like taking so much. I dont have any acid reflux just the heart burn. My diet has not changed and i am not taking any new meds. I have been taking meds for IBS for the last 4 years. I have never had problems with heart burn until now. I had my gallbladder taken out about 6 years ago. Should i be worrried about this

[FurballsMom]

I have had problems with sulfites aggravating my GERD.  And, sulfites are not always listed on the food labels.  It may be you're starting to develop some food sensitivities that you haven't had before.  You can look up information about a basic food elimination/food challenge test, but I suggest seeing a naturopath to get proper guidance on how to follow a food elimination diet.