You need to check your sent folder and see if you were actually hacked.
You can send emails from any computer and alter the "from" email address using most email clients. Just because they put your email in the "from" box doesn't mean they hacked into your email. When emails bounce, they automatically go to the "from" address regardless of where the emails originated from.
You can send emails from any computer and alter the "from" email address using most email clients. Just because they put your email in the "from" box doesn't mean they hacked into your email. When emails bounce, they automatically go to the "from" address regardless of where the emails originated from.