?Migraines?

Bella had another "episode" yesterday. She gets a really bad headache and stomach ache. She always seems to throw up and then becomes really pale and lethargic. We believe she may be having either a regular migraine or an abdominal migraine. They have a lot of the same symptoms, but it's possible. She had one in August and one yesterday. I am keeping a log of what happens, when it happens, what she ate, what may have changed to try and find a trigger or at least show a pattern of her having these. Her pediatrician said that's what it truly sounds like but they are really hard to diagnose and there is really no treatment if she is having them infrequently.
I think this may have been what happened to her in April, but it was probably her first and she was so disoriented, and we didn't know what was happening to her. It starts in the morning and she has it all day long. I can get her to sleep which is the best thing for her and the next day she is fine. We don't know anyone who has a history of migraines in the family so I am not really sure where it comes from.