Possible Parasites...symptoms, please help

Hi...I've never posted on here before but am really hoping for some input. I had never considered parasites before until my new doctor recently brought it up and is doing some testing. I've had unexplained symptoms for the last 5 months...every GI test in the book comes back normal but symptoms persist.

One day out of nowhere I had really bad nausea that lasted a few days. It came with excessive burping. The nausea comes and goes, but the burping has continued every single day for 5 months. It's terrible. Tweet