Being Strong Only Lasts So Long Without Action

Ever feel like this? Did your day start off with a good and determined feeling and drop off into tears later in the day? Have you had entire good days and then a spiraling cycle of bad days? I have. It is pretty debilitating.
Those who have known me for any length of time know that I haven't been like this my whole life. It is a foreign feeling to me. I believe it started about 4 years ago. It was when the life as I knew it came down faster than a tower of Jenga once the wrong block is pulled. Medically I found myself no longer able to work or take oxygen into my body on my own without some form of help from machines.