Blues songs - The simplicity of writing a new blues song?????

Whilst I am say at home recovering ( blood clot) I have toyed with the idea of writing my own blues song. Ok, yes I know this should be easy? blues songs seem so simple? This should be a piece of cake shouldn't it???

Riff wise, I have some killer riffs (well, killer according to moi - Big Al) playing these at different tempos, trying to make them sound moody and mysterious but trying to keep a hook, something that will draw in the listener to want to hear more etc.

Ok, so I think I have a tune, now its lyric time and this is the hard bit.....don't want to try and sound like some story of drinking, philandering, morose, my baby left me type song etc.....so what on earth do I write???? I now have a total mental block.....nothing is there, no story, nothing whatsoever!!!! 

I admire these guys who can just lay down fantastic and catchy lyrics, it is an absolute art form and I am now struck by the green eyed monster. Maybe the lyric side of writing a song is just not for me? maybe I should push it out to cyberspace and ask somebody to pen me some lyrics to "Down at the Junkyard" or "The Preachers Blues"....this I think is the easier option........

If there is anybody out there that can pen me some catchy, beautiful, heart felt lyrics then I will be so blooming chuffed!.......

Keep on rockin!!

The Preacher