I sent 0.0005btc from A btc address to my B btc address.

However, the blockchain.info wallet says the B wallet contains transactions which may be double spends.

And then, the 0.0005BTC was transfered to one new address which does not belong to me.

I tried to send another 0.02BTC from A to B, the same result.

The funds have not been sent back yet.

My funds have been taken?