Electrical zap feeling travelling trough body

Hello, I don't even want to start on what I have, it is a lot. But a weird symptom that can not be explained is, that I get an electrical zap in my stomache, connected to eating or deep breaths. The zap is travelling trough the right side of my body and stops at the ellbow. This zaps seem to happen mostly during Gastritis flare ups. I never heard about this before and I do not find any info. Can someone relate to this? For your information it is not MS (was in the MRI) and I am not pregnant.