Yep, sounds very much like gas to me. I get the flutters all the time where you can just feel the gas moving around. I kind of think it feels like when I was pregnant and I would get those little movements from my son. It was probably gas then too :) I'm glad your echo turned out okay. Palps can occur with IBS and they can occur with anxiety too both of which I have so I know the feeling.
Co-Moderator ~ IBS Forum
Dx: IBS 1989, Diverticulosis 2004, UC 2005, Sjogren's 2006
Meds: Sulfazine EC 1000mg, Mesalamine Enemas, Chlorzoxazone 500mg, Naprosyn 500mg, Symax SL .125mg, Protonix 40mg, Xanax XR 2mg, Miralax 17g, Supplements
Please help Healing Well continue to help others by donating https://www.healingwell.com/donate