Exhausted and feeling odd....

I am totally exhausted today.  Like could sit here on the couch for the rest of the day kinda tired.  But, then my brain is going crazy thinking of things to do.  It's like my mind is on full-speed but the rest of my body is not in agreement.  The funny thing is my mind wins..I sit down for a few and then I get up and do something...then I give out and sit back down.  It is a viscious cycle.  I also have the major 'brain fog' that comes with Cushing's today.  I swear, it isn't enough the hell this disease does to your organs and muscles--it screws with your emotions and thoughts, too.