Blessed to complain

What does it mean when you can complain, or feel the pain of the little things like...
When you feel so overwhelmed with your bodies brokenness with a simple flu.
When you feel disappointed or frustrated with the taste of a plate full of food.
When you can't understand why people are sitting in the seat you wanted (like business class on a long plane ride)
When you look at a room full of clothes and wish you could change them all and have all new ones.

What a blessed life I live, that I could complain even for a second about the fullness of my life.
My body hurts which is unusual. My suitcase is full. My ticket is paid for and I am blessed to complain!