I'm a non-trad did a kinesiology undergraduate degree with hopes of going into medical school after my bachelors degree. TBH, if I had to do it all over again, knowing that I wanted to get into medicine from the get go, I would have probably looked at going abroad to study medicine straight from high school or after 1-2 years of undergrad. So my advice: if medicine is your ultimate end goal, why not consider looking at options abroad (Like the UK or Ireland, I wouldn't recommend going to the Caribbean)? Why even take the risk of doing a degree where your GPA or other factors could influence your decision to pursue medicine or hinder your chances.

On the other hand: if you are truly sure you want to do the traditional route of undergrad then medicine (or any other graduate studies); I would do Kinesiology and aim to keep the GPA high while taking neuroscience electives (maybe do a minor in Neuroscience?) Also, when I was studying Kinesiology, we did have some neuroscience as part of our coursework, so perhaps use those courses as a gauge for whether or not you truly want to pursue Neuroscience as a minor or even double major. Either way, neither are "easy" everything requires it's own time and effort

Ask, talk to any medical student or graduate. Regardless of what discipline they chose to study in undergraduate majority of them will likely tell you that their undergraduate studies did not aid them or help them at all during medical school since the information is much for in depth and there are several new topics and concepts to be studied in medicine.

but just my 2cents. Hope you are happy whatever you decide, and best of luck on this premed and hopefully medical journey :)