Do you ever get sick of trying to explain this?

After 23 plus years of chronic Major Depression, I'm so flat out sick and tired of trying to explain my condition and symptoms. It's freaking ponderous even to me. Therefore using examples to explain many symptoms, even to my P-Doc doesn't fully compute in his mind. It doesn't matter that he is an experienced Psychiatrist. He will never know how it really feels.

Any attempt at explaining it to others is utterly pointless. The usual response is "Wow. So what happened?" NOTHING HAPPENED, NOR DOES ANYTHING NEED TO HAPPEN. It just is because it is. Even the rational problem solving part of my mind and brain will work overtime in a relentless close loop cycle because it is trying to make logic out of what is seemingly illogical.

Always then ending at same starting point because my intellectual mind cannot calculate a way out or around it. (Sort of like a closed loop electrical circuit.)

it's like being paralyzed from the neck down, yet "Hey look! My arms and legs will move!" Wherever I am and in all I attempt to do is NOT really where I am. (It may appear that way, but I'm not really there.) I'm a rational person, but yesterday for a few minutes I actually had this idea of buying one of those bedside urine containers so I could piss off the edge of my bed while laying down! It almost seemed logical given that just simply walking to the Damn toilet is inexplicably difficult when by my rational thinking this function should be automatic and zero thought even given to it.

I'm absolutely convinced that there is no way of any clarity to describe this condition because it is by nature that which cannot effectively be described. Then I try to tell myself over and over, "Stop your mind from trying to figure it out!" Problem is a very large part of my brain will keep along in a futile attempt to figure it out. It's ****ing exhausting.

by 3pm each day my mind is tapped out with its exhaustive attempts at trying to makes sense of that which makes no sense.

Yes. You've said it well. Trying to make sense of it for one's self...
Trying to explain it to others who haven't experienced anything like it...

I used to be obsessed with expressing what it is and what it is like.

Now I live my life as best I can with exercise, yoga and mindfulness. It is like starving depression of its control over me, one activity at a time.

Psych Central helps also.

Yea, I'm really trying so hard to do just that. I have been trying to pick just one thing (even a simple and small thing) to get done each day. Sort of trying to build off that, but I'm not able to build it into much more.

I guess it's sort of like procrastination, but a good deal different. It doesn't feel like procrastination. I faintly remember what normal Procrastination felt like back when I was 22 and prior. This is far different. It's sort of like I actually can do things, but yet at the same time I can not.

My Damn mind is always in the recent past, distant past, or very near future, or distant future. It is never in the NOW where it needs to be. (I don't mean to say that future planning is not important. That is normal for a Human to do.) What is not normal is to sit looking at a wall for 2 hours ruminating over crap that may never happen or in regret of that in the past. I do that so much and so badly that the result is no room left to even remember very important matters.

I'm pretty sure my faculties of memory are there, but I have difficulty in recall of so many things (Names are the worst) because I honestly think my mind is so over populated with unproductive thinking that retention of important things is not being stored. Like a broken storage Hard drive in a computer.