Pure adrenaline effects us all in different ways, I usually wonder why they can't hear my pulse pounding like a boom box and who knows what else is shaking? We are all addicted and should get counseling
I will get the "elvis-legs" a going once in a while when they are coming in, but once they are within range I calm down and am pretty calm (even when a screaming bull is within 20 yards). I try to calm myself down so that I can pick the precise spot i want to put the shot.
Haha this is a classic for hunters. When I'm sitting there waiting and I know something is coming in it feels like I'm going to pass out. I almost like it better when they just show up out of nowhere because then I can't think about it haha. I get really nervous right before I draw. I'm not sure which shaking I hate more. The shaking because something is coming in and I can't control my adrenaline, or the shaking from having a staredown and not being able to move and some part of my body is in a not very comfortable position and it starts shaking from being numb. Haha
My biggest problem is slowing my breathing down. i will never forget my first case of buck fever. I was 12, Northern Idaho and a 140 whitetail came around the corner 20 yards from me. My legs were shaking then ;D
Ha... and I notice in significant cold weather I shake even more. It's like the shivers get a solid shot of steroids. Late season archery for white tails can be a very similar experience.
I still remember Shooting my first bull at age 15... I seriously almost passed out. The funniest part was trying to play it cool in front of my dad and just about blacking out!