A Step Back

I'm writing about my feelings at present. I'm sure that God will speak to me and I will feel differently later, but now, I am upset. I don't think He expects me to ignore my feelings, but to deal with them. So here they are.
I'm angry. It seems like we can't ever have an easy path. Seth was doing remarkably well for about 12 hours and then this afternoon his oxygen saturations began to fall, his extremeties turn blue, and his demeanor changed. He looks sick. This morning he was fighting mad. Now he is just lying there in the bed.
At what point can you say, "God, I've had enough." Well, I guess I said it. I'm tired of everything being so hard and watching my baby suffer. No one should have to endure such things.
I can't think clearly now. Best not write anymore. God, send your Holy Spirit. Calm my anger and give me peace. Help me be strong for Seth. Speak to me of your mercies and your promises again.