Hello~I have been experiencing movements in my stomachand occasional nausea for a little over a month. The movements feel like a baby rolling around in my stomach but I am not pregnant. I have been having regular periods. I did take the plan-b pill about 2 1/2 months ago, so I m not sure if this could be a side effect. I have 2 children, so I am well familiar with the pregnancy sensations. I just had my 2nd child by c-section almost 7 months ago. I just had a 30 year old friend suddenly pass from a stomach aneurism, which makes this even more troubling. Help please.