Other Vitamins and Minerals. Other nutrients can also help relieve muscle pains. A magnesium deficiency can cause muscle weakness and pain, while a lack of other B vitamins, like riboflavin, can also lead to muscle cramps and pain.
So my answer is that getting into medical school is pretty darn difficult. If you take a look at the medical school requirements page, you can see that I recommend a GPA of at least 3.5 and a MCAT score of at least 30. With these scores, you should have a chance to get into medical school. However, your chance for getting in also depends on the color of your skin.
Additionally, you must take the MCAT, which is the admission test for med school. Once you get to med school, expect another 3-4 years of education. Med school is intense and most schools expect that you do not work during it. Med school is a mix of clinical rotations multiple areas of medicine. There is also intense classroom study.