Hi all,

For a few months now, I've had weird experiences.  I'm going about my daily business when suddenly, its as if iv'e had a very, very vivid 'Memory' gets forced into my thoughts.  Its not an hallucination, i can't see or hear anything.  It's just that this memory is so strong.  But the more i try and solidify it in my mind, it starts to fade until I'm left with nothing other than the knowledge that something strange has just happened.  While its happening, i can still function normally.  

Any help would be great.  Thanks in advance.