I think u r a very anxious person!!

This girlfriend issue has just brought it out. You have gone thru a few panic attacks , that is what I see in your post. You really should also stop obsessing about this girl....there r lots more out there!!

In the mean time.....will u please get lots of rest, exercise, a hobby, eat properly and mabee redo your apartment ,or house to get a new feel of things!
Good luck big guy!