Error: There is a Pending txn with a lower account nonce. This txn can only be executed after confirmation of the earlier Txn Hash#

https://etherscan.io/tx/0xaab90d00abf065e4158852a64c809b8921d109e997bd3790cb471aadfa57f4e0

I've been waiting for this transaction for almost an hour (trying to transfer from Newton to TrustWallet). There seem to be hundreds of transactions from the same address that I don't recognize. Have I been hacked?