BCH gone from Electron Cash wallet??

[B0Davis]

Hi guys.

I transfered my BTC to an electrum wallet 22.07.2017 before the BCH hard fork to take advantage of it.
After the fork I opened an electron cash wallet to claim my BCH using the Electrum seed.
This seemed to work.
I have opened electron cash several months later to find my BCH balance has been sent to another address on 11.11.2017
I am almost certain I did not make this transaction. Has this happened to anyone else and can I find out where it has gone from the transaction ID?
I will try upload a photo of the wallets and transaction dates.
Thanks
James