I'll answer this seriously
Both of these training pathways requires you to work 'full time' in a way you have probably never experienced. Becoming surgeon is a minimum of a 13 year training pathway (4 years college, 4 years medical school, 5 years residency) and the average applicant actually takes a full 7 years to get into medical school after high school (16 year pathway). The average successful applicant to medical school has a 3.6 GPA at a mid or high tier 4 year college and a 31 on the MCAT (think 1200-1400 on the 1600 point SAT) and very few applicants are accepted with much less than that. You should expect to work 40-80 hours a week during college and the first 2 years of medical school, then 60-100 (between work and studying) during the second 2 years of medical school , and finally 70-100 hours a week through all of a surgery residency. If you have ever had a job where you worked a 12 hour shift,just imagine doing 6 of those every week and sometimes not getting a day off.
SEAL training I know only by report, but from everything I know it is similarly intense but even more frontloaded. The training takes over 2 years before you even reach your team, and is essentially an every waking hour job from the day you begin training. Then you get to your team and start working at a job with similar hours to residency (or so I'm told). A relentless and unreliable training and deployment schedule will preclude anything else you want to do.
There is a slim chance that, if you are at the right command and have an understanding LPO, you might be able to complete a significant number of college credits while enlisted in one of the easier ratings, but the chance of having a command that concerned about your education is vanishingly small even for, say, an average medical corpsman attached to a hospital (50 hour/week job) and is 100% impossible while attached to a more demanding command like special warfare. No you can't be a SEAL and a surgeon at the same time.
You can do medical school after special warfare and bizarrely I personally know not one, but three people who did that. You can't do the SEALs after medical school, you would be too old to begin the training.
Finally I think you know that achieving either of these goals is unlikely for anyone. Most college students want to go to medical school at some point and less than 1% will. There are more former NFL players than former SEALs and of the people who enlist with the expressed goal of becoming a seal I have been told that less than 5% will achieve their goal. Cultivate viable backup plans.
If you have other questions about premedicine, enlisting, or whatever feel free to ask. Remember that recruiters will promise you anything and everything to get you to sign a contract and if a promise is not in writing it is a lie. Good luck, whether you choose to continue with college, to enlist, or neither.