Are Frequent Migraines And Vomiting Signs Of Menopause?

My mother is 51 years old and refuses to go to the doctor for a checkup. She hasn't been to a doctor since my brother was born 24 years ago. My grandmother and great grandmother have both died of heart attacks at ages 60-80. My mother suffers from disabling migraines monthly and often vomits. Is this a sign of menopause? Also what tests should my mother undergo during a routine checkup at her age? I have noticed her breathing has changed recently and she has been taking rapid breaths rather than normal ones.Is this something to be concerned about?