Is this burning sensation coming from your throat?

its not coming from throat but i do get a horrible taste in mouth and tongue coated yellow

Is that horrible taste in your mouth, acid like?

yes it tastes very acidy in throat.

Yes, it could be from the acid reflux.
It causes burning sensation that comes from the chest, behind the breastbone, squeezing and radiating to the back, lasting from a few minutes to hours.
Acid reflux, is a possible cause of tongue yellowing, too. It may be that the acid rearranges the mouth’s normal bacterial flora, and some of it may have a yellow hue.
Actually, balance of normal and abnormal bacteria is disturbed, and an overgrowth of Candida fungus appears causing yellow coating of the tongue.
Having a oral thrush (white,creamy or yellow coated tongue) is one of the symptoms of esophagitis (inflammation and damage of mucous membrane of the food pipe), condition commonly caused by acid reflux.
Do you have this coating in form of yellow raised spots on the surface?