Low Blood Sugar????

Kyla
I walked home for lunch (which is about 0.5 miles). I knew I was feeling pretty hungry but I wasn't feeling ravaged. I got in the house and started getting a salad hit me and all of a sudden I felt dizzy, shaky, sweaty, and super nauseous. My husband got me to eat half of a banana real quick and an orange and I still was feeling terrible. The idea of eating now made me feel worse. I had about a half an hour nap and when I woke up I felt ok again. I ate a salad and some toast and I'm back at work.
I have never had a problem with low blood sugar, do you think that is what this was?