Sour Stomach More Condition_symptoms Pics My Allergies Have Been Acting Up A Lot Lately, Could This Be Related To My Sour Stomach And Lack Of Appetite?

My allergies have been acting up a lot lately, could this be related to my sour stomach and lack of appetite? - sour stomach more condition_symptoms pics

I am a healthy man of average age who are not overweight, burn calories during the day and eating well. But lately, I'm not hungry, just heartburn. I did not take antacids work and Benadryl, which works. Has anyone a link between heartburn and allergies heard?