As I didn't have any breakfast, I am very hungry now.
Since I didn't eat anything for breakfast, I'm very hungry now.
938
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何も, なにも, なんも
1. (not) anything, (nothing) at all, (not) any, nothing
2. and everything else, and all
3. (not) at all, (not) in the least, (not) especially, (not) to that extent