Jakes, I have lived here and hunted in Colorado for the last 31 years and have seen many experience altitude sickness when coming up from lower elevations. I live at 7000 ft and sometimes still get it when hunting. Obviously the main problem is reduced oxygen in your blood and that effects the whole body. I've used plain old aspirin for 30+ years, but what I really believe helps the most is the water you take with it! The first symptom is a headache. At that point, pound down all the water you can handle. Slow down and rest and you should be fine
Also keep in mind that 1 beer at home is equal to 6 at 10,000 ft. Hit the stairs as much as you can these last few days before the trip. Stairs are the best training for hiking in the mountains. Do it with your loaded pack and bow on.
Have a great trip out here and let us know how you did!