My Feeling Today

Today I felt very sleepy...I don't know why. I think I have enough sleep last night. And nothing wrong with my activities...I am not too tired too...but why I felt very sleepy ? When I told to my sister, she asked me out this evening and after have shopping at our small city , we have a dinner. We ate fish...it is steam fish ..and it taste good. And so surprised me ...after i ate the fish..it is about half hour..I did not felt sleepy again..I told my sister ...and she laugh at me...she said it means you need to eat a good nutrition for your body..and fish is very good for our body. I think she is true...