I had about 400 images on my iPhone organized into perhaps 30 albums. I backerd them up to my Mac Pro at home. I am away from home for two months. Two days ago I got a message saying I had not backed up my iPhone in 10 weeks. I thought I would back it up to iCloud where I have 50 gb. I did. Yesterday, I wanted to show photos to a friend. I discovered the only photos on my phone were the 40 or so in my camera roll. The others are all gone. What do you think I did wrong?