Those ain't no stinkin' butterflies in your tum-tum. Thems be MOTHS!
Feeling like you are going crazy is almost a sure sign that you are condemned to sanity, which leaves good old anxiety as the culprit.
Be that as it may, there is a reason this happens for "no reason." So the deal is, you consult with a doctor, perhaps take a med to calm things down and then get some counseling or therapy to figure out where those moths are coming from. Have a look around the forum and you'll see that, like Walmart, we're just full of happy shoppers. Here is a journal entry of mine that may help get you started:
From my profile (click my name) see Where is it Coming From?
Or just go to this URL:
www.medhelp.org/user_journals/show/9206
We've got your back!