Share 'Same title zine as somebody else?'

So I have a zine called Sour Puss and before I decided on the title, I gave it a quick google to make sure it hadn't been used. I'm now up to Issue 3. Last night I was reading Zine Yearbook 9 and lo and behold there was an excerpt from a zine called "sourpuss" in there (one word, not two which is why it didn't come up in google searches),. I don't know what to do! I really love my title, but feel…