"Terrible reflux" refers to a condition where stomach acid flows back up into the esophagus, causing a burning sensation and discomfort in the chest and throat. Full definition
I got terrible reflux with my second pregnancy that never left and coffee makes it so much worse! (kidsinthehouse.com)
I had the most dreadfully difficult start with my first baby: a difficult pregnancy and traumatic birth, then he suffered from terrible reflux for months and months. (evolutionaryparenting.com)
«My son was suffering from terrible reflux and pain in his stomach. (evanbrand.com)