We got hit with the hurricane this weekend, and we lost power for 30 hours. We had a generator running the refrigerator off and on, and I know my freezer stash stayed frozen. However, the milk I had in the refrigerator seems different than usual today. It usually separates after a few days, but the "top" milk in the containers seems thicker than usual. The milk doesn't seem to smell. How do I know if it's gone bad? I'd hate to waste it, since I don't get much when I pump, but I also don't want to run the risk of giving bad milk to my 4 month old. Help?