I feel so terribly sad for Haiti..can't go on with my daily life?

I haven't slept for days and every time I eat or drink (very little), take a shower or see my healthy kids I feel immense guilt that some people in Haiti are currently dying and don't have what I do. I cry a lot when nobody is around. I'm getting pretty depressed because this tragedy is of unimaginable scale. I donated multiple times to different organizations, I pray for people. I want to adopt their child when the time is right (they remove a hold on new adoptions) but mostly I just feel that profound sadness about the lives lost. I find it hard to go through the day (work, family, chores--maybe lack of sleep is catching on with me)...Does anyone feel the same? I want to help more and take in kids that are orphans and give them my unconditional love. I came to a realization that life is so uncertain and short that you can only justify your own existence through love of others and supporting those in need.