Okay fellow moms. I need to get to the bottom of this. Fairly frequently I've been getting this…

Okay fellow moms. I need to get to the bottom of this. Fairly frequently I've been getting this burning tightening sensation in my belly along with dizziness. Then I throw up. Then I feel better. Then I get extremely light headed and break out into a sweat and my hands shake. This has happened out of the blue while I was driving twice. I've called my doctor and gone in before but all they keep saying is "well eat more proteins" which I've done. Or they say "well it could be your blood sugar but we don't really know." they are giving me no answers and they sure don't seem very concerned. The next time it happens I'm just gonna go to the ER. But do any of you have any idea what could be happening? It gets really scary really fast.