Email hacked?

Earlier this morning I started getting notifications from facebook and other sites that someone was trying to reset my passwords.  Then someone used my username to sign me up for citysex.com and a few other unsavory websites. 

Also, some idiot signed me up for pregnancy emails.  At this point, a lot of it has been gmail letting people sign up for email addresses with my name@gmail.com BUT they sign up for n.a.me@gmail.com.  Yeah, that doesn’t work because I get all of their emails. 

This is so frustrating.  But my main question is - is someone trying to hack into my info specifically or is this just a random occurrence. 

Either way, I have changed all my passwords including banking to be safe.  Has anyone else experienced this?  I have a mac book so I don’t think I have a virus and my work computer has been ok as well.  Thoughts?  Help please?