Roller Coaster - 190 days to CIM

Yesterday I did not run - low motivation, depression and all that stuff that sucks the life out of me. Today after 4.5 fast miles I felt energized, happy and ready to tackle the world. The more I get tired the happier I become. The less I exercise the more depressed I become. So is there a limit to all that happiness? How would I feel after doing a 100 miler?
My days seem to be going up and down depending on whether I run or not. The question is how do I make myself run when my brain tells me 'later'.
I added stairmaster (I call it stair monster to my exercise routine) to help my quads.

I had to return my Oakley sunglasses. They fit well and I liked the way I looked in them, very athletic and ready to cover endless miles, but as soon as I put on my running hat it interfered with the glasses and since I cannot run without my hat the glasses went back. The Oakley store took them back, no questions asked. I think I will stick to my Natives, I will just have to find the lenses I need and that seems to be a very difficult task.