JCPhelps,
I beleive that you should wait until you sense that the time is right for you! You will know when this is. Remember that medical school is going to take up 90+% of your time unless you are gifted.
Do the things you are interested in now. You don't want to have regrets by passing on these opportunities. Your applying time to your interests will make you a more rounded physician.
As for applying for medical school in your 30's, I purposely waited until this year to apply. I had other interests to assert myself to. Before I applied, I wanted to be sure that my main focus was going to be on medical school and that my study habits were in tune for the rigorous hours.
😱 One warning that I have for you though is that you don't wait too long. Many of the medical schools want to see a full load of course work, all with high grades, that were taken no later than a year before applying. This hurt me in one interview. It had been 3 years since my last course work.
If you are taking time off from school, be sure that you work in a health-related field. This will show that you have had ongoing interests in healthcare. Because I was a non-traditional student my healthcare experience was of great value to me as I applied and interviewed.
Good Luck 😉