So yesterday i deposited about 3 dollars into some wallet (ehmeehmtorthing)
and kabum doublespend so my wallet got into negative number

Of course after about 1-2 hours it went again into normal value (the doublespend was denied)
So i started to look for this around and it seems like almost all bitcoin users are facing this problem.

Read about the doublespend attack here

BTW here is a message from blockchain.info about this issue


As they say you dont need to worry, the doublespend will be never confirmed so it will be denied by the network after some time and the funds will be returned