Replying to Oh shit.

im having a problem with my computer. i think my ip adress is being accesed. i uploaded a picture to my myspace today and when it was done it said, thank you for uploading your picture from IP adress ________. but it had my ip. this also happened the other day when a popup came up and said my ip, and when i opened iexplorer instead of going to google(my hompage) a screen came up that said ," your ip adress_________ is being compromised blah blah blah." is this like really bad?