When our DS was about the same age he all of a sudden became absolutely pertified of the vacuum cleaner. I hadn't had any issues beforehand, in fact he was an exceptional placid baby, and not much of a crier. I just kept up the normal vacuum routine, and chatted to him while I did the chores... I guess trying to show him that mummy/ daddy were okay with this loud 'sucky' monster and our reactions were different to his.. Whether that helped or not, I've no idea but he now 'helps' with the vacuuming and his reaction didn't really last that long.
However, we do still have an issue with the noise of unravelling packing tape!! At least that's not an everyday sound though.
An old lady I once met said something that has always stuck with me .. while DS was playing one day she said 'It must be like travelling to a foreign land', ie. all the strange things and learning the lingo etc. I guess it made me more aware at looking at things from his perspective.
Perhaps it's just our children becoming more aware of how much they can 'control' their environment? Perhaps with the whoopsie on the floor, your little girl was trying to tell you she was wheelie wheelie sorry ?!
Sometimes it's so hard to decipher their reactions isn't it? But it can be fun learning!
Keep smiling smile
Sue, DS b. Mar 2004