Can you loose the ability to burp ?

Can you loose the ability to burp or relax the lower esophageal sphincter with time ?, i have acid reflux for a long time but since a few months ago i can't burp at will, and is easy to notice because when it happens it's really easy to me takes no work, but in other ocasions it does not matter what i do relax or no relax i just can't and it happens in a really strange way, one i can put out and the next i can't and it's really as mathematical as it sounds so is this my head ? cause it really takes no effort for me to burp but at the next one no matter what i do i just can't and i burp all the time eating or not eating because of my condition.

thank you

I lost the ability to belch (and vomit), after I had the full Nissen Fundoplication wrap, but never before. Have you tried some simethicone to help with the symptoms?

Sharon