Another Cranky Day

Another cranky day. What is it that causes this state? I had a stroke and came out or it without serious damage to my brain and health.  I should be overcome with joy on a daily basis. What/where is my melancholy arising from in my brain?  

I am short tempered, irritable, unmotivated, without direction. I don't know what my future holds for me.

However, why am I focusing on these facts, rather than the possibilities that this stroke has opened to me? I am grateful for: life, no major stroke issues, friends, Joy, beginning artwork, slowing down, feeling present, having wisdom.