Esophageal spasm or what?

Hey guys, i was diagnosed with gerd 9months or so ... i was on PPi's for almost 1 year now.

The Last 3 months i was experiencing something drives me crazy. Everytime i eat for about 30mins to 2 hours i always got a sensation on the middle of my chest just like my heart is beating irregularly for almost 1 second and then it eased... the thing feels like my heart skips a beat then a big beat or something like that.

I searched and i found that it was esophageal spam and i dont know if you guys experience something similar when you ate or i should get checked? Heart ultrasound and EKG comes out clean last year not sure if i need to do another test or no.

Thank you