Nothing to worry about, mate. “The Old Hag” is only the work of your own imagination, and it cannot hurt you more than you allow it to. It’s also worth mentioning that it’s extremely rare, and it’s there’s absolutely no guarantee you’ll ever experience “The Old Hag”. There are hundreds of posts upon this subject all over the forums.
Check this out for example:
[url]The BIG sleep paralysis and old hag topic Part III]