One thing you might find interesting, is Crisis has a female lead singer. The first time I heard them live I had to check to make sure the lead singer was female. But they are also a very nice band.
I think sparing would count as sports, which also strengthens your mid section which can also help with drumming. And the push ups are good to build strength in your arms, but you already know that.
I'm sure you'll build up your endurance to be able to killer drum solos. Once again all it takes is practice. Practice, practice, practice.
I'm sure with all of the effort you're putting into it, you will be a great drummer soon. :)
Sorry I haven't checked out your flute yet, but I haven't forgotten.
Keep rocking the world!
My compliments on your IMGFLIP Metal edition #2 too.