What Causes Frequent Belching After Having Food Despite Taking Pepcid And Prilosec?

When I eat or drink I tend to burp a lot. It smells like A bowel movement. I feel sick and can not function. I take Pepcid and Prilosec, also rolaids. nothing works! I have trouble going to the bathroom also, I tend to always be constipated. My mom died from her bowels she did not have one piece of intestin that was not tore. could I be getting the same thing