Content with Weakness?

I have recognized a hard fact: I idolize "ideal" circumstances. I expect if there was just that "one more thing" then I'd be ok. This has recently came to my attention primarily in regards to how I handle my back pain. It can also be called contentment. Last year, I dealt with the issue of contentment in singleness (see blog), yet the issue of contentment continues to surface.
You see, when my back pain starts I tend to have a really bad attitude. That's to be expected as I'm in pain, right? But the hard thing now, in my relationship with Magnus is that I tend to take it out on him. My temper is a little shorter, I'm more demanding, less appreciative. Basically, sin rears it's ugly face.
God's started to sift that out of me. As I've struggled with my back (and my attitude) I realized quite definitively that I am NOT ok with this back pain. Not that one needs to be ok with pain in the world, but as God has worked on my heart he has shown that I am holding onto bitterness against him, a sense of entitlement to health, and a belief that if I just "do the right thing" then it will be ok. Proceeding through some of these thoughts is ok, but not being stuck in them. And that's where I am.
In 2 Corinthians 12:7-10 Paul records his struggle in talking with God about his own weakness, ending the section saying "I am content with weakness" (vs. 10). I want to be able to say that, but I'm not there yet. I want to be better, I want to be healthy, yet God has been reminding me of this verse, this truth, and asking me - can you be content?
So I will fight, submit, and seek God. As I said, I'm not there yet in this issue. But that's ok - our God is bigger and he has promised to bring me to completion (Phil 1:6) through the power of Christ in me (Gal. 2:20).