I went through the same thing. The MD I shadowed told me to be a dentist (haha). He said, "when you're older, you just won't want to work as hard." And I don't know you personally, but if family/free time is important to you, you will be much happier with dentistry. Most dentists work 4 days a week, one of my mentors work 1 day a week since she is closer to retirement. Another dentist I know has 5 kids. You will never have to be at the hospital for upwards of 24-36 hours at one time. There are a few exceptions such as OMFS, where you'd have tougher residency years. But after you graduate as a oral surgeon, your lifestyle is back to a dentist's lifestyle (if you don't want to work all the time). Dentistry is overall a very different field, and the dentists I know are just much happier people in comparison, which is why I finally decided on dentistry.