Here is another suggestion:
1. You can enter the search terms "MD JD" on a business community website (e.g., LinkedIn).
2. In so doing, you will find profiles for multiple individuals who have earned JD-MD degrees.
3. These individuals didn't just "think" about doing it ... they actually "did" it.
4. Then, you can look at the professional experiences and work history of the JD-MDs to get a better idea of *which types of work* some of these individuals have chosen to do in their respective professional careers with their JD-MD degrees.
5. Maybe some of them are doing the same type of work that you (currently) imagine yourself doing in the distant future? Or maybe not?
6. It's advisable to take your time and figure things out for yourself before jumping into the unknown, and regretting it later.