Google explains only the WORST case scenario that causes this. I haven't slept all week. Anyone ever had this and it turned out to be nothing or a one time thing?
Yes—Google's an internet search tool that utilizes sophisticated algorithms to decide which results are going to be shown first. Most popular does not necessarily translate to most likely.
My advice is that you try to curb the google searching. I know it's difficult when we just want that hit of reassurance, but it really does only make things worse. You're keeping yourself locked in a cycle of anxiety by simply relying on what Google tells you.
Are you trying to seek out any kind of professional anxiety treatment?