I think you might want to try a colonic. It's possible that the enema is not able to reach some stones in the colon and they're producing toxic effects. Also, I would suggest that you continue with the cleanses. That's the only way that you'll get rid of your current symptoms - it often gets worse before it gets better. Moving to a more vegan diet (if you haven't already) should help with the difficulty thinking. I had a lot of trouble thinking when I ate meat and dairy and now my mind is more clear than it's ever been.