Doctor says no acid reflux but why i always have burps even when i wake up i burp alot but no heart burn.

Burps: Even without gastric reflux belching can occur either with gaseous build up or,more commonly, swallowing air as you force yourself to belch which is a cycle which leads to more air in the stomach and the urge to keep belching. You may have a hiatal hernia which becomes symptomatic after lying horizontally for hours in bed. You could also try taking a simethcone tablet at bedtime to prevent gas