Yes, I'm generally a positive person.
 
Yes, I love what I do to the point that every now and then I have to pinch myself to see if I'm not dreaming.
 
And yes, there are days when I struggle to get anything done at all.
 

‍ On those days, I feel like I'm moving under water and I never know quite how to handle the feeling.
  How do I snap out of it, and get on with what needs to be done?
 
But then I remind myself, Im only human and I'm not a robot.
 
Just because I'm happy with everything I have, it does not mean I can't ALSO be tired. 
It's not either/or.
 
For me, the best thing to do in those moments is simply retreat into my shell for a while and stop forcing myself to be "productive".

Because it ends up being counter productive. I just sit and stare at my screen feeling too guilty to stop because I haven't produced anything useful and too tired to think.

I've found that spending some time alone and doing absolutely nothing...