I hope you feel better soon, and find what triggers the migraines so you are able to avoid them.

A little story to cheer you - my cousin's wife is a very slight gal, she's half Korean, and inherited the fine bone structure from her Dad's Korean ancestors. She has had migraines since she was a teenager, but they're usually under control. She is now a kindergarten teacher, and when she was heavily pregnant with their first child, 9 months along, and really looked like she had shoved a beach ball under her dress. She had a very bad migraine one day, so bad that she had to miss school. When El was back at school the next day, one of her students asked "Did you have the baby?" unaware, as little children are are that a) if she had a baby yesterday she wouldn't be in school today, and b) she's no longer be so hugely round in front!