Should I tell my doctor?

Katie

36 weeks today. This morning I felt a little hungry. I was finishing up something at work and planned to get a snack in a few minutes. All of a sudden I felt light headed, had a bad hot flash, and just felt out of sorts. I ate some graham crackers with peanut butter and drank a lot of water. After about 10 minutes I felt better. Now I’m just really tired.

I have a regular check up this afternoon, is this worth mentioning to my doctor?