Relax a bit. And don't hate yourself.
Plenty of "kosher" websites have been hijacked (usually from out of date or vulnerable hosting software) and cause results similar to those you've seen.
(No-one thinks you're dirty
)
You wouldn't hate yourself if you caught a cold from kids passing it around at school, would you?
Same thing. (Except, perhaps, the originator is deliberately trying to spread it.)
The chest is a protected area where nothing can escape from, without specific user input.
Couple of ideas for some "second opinion" malware scanners, used and recommended by many on the forum (search if in doubt. Good habit to, anyway)
MBAM (free download is the blue button) and/or
SAS.MBAM is the smaller download.
Install, update, and run at least a quick scan with one (or both) of those, if only for your own peace of mind. (If in doubt as to results, feel free to post the scan reports here before actioning them.)
Anytime malware is found on a computer it is a good idea to have a second, or even a third scan, or an investigate of some kind.
Then we can let you know about certain things you can do with your browser and computer that will make it less likely you'll get infected again.