Does your physiology change when bidding?

The other day, while bidding on an online auction, I noticed that my heart rate and body temperature felt higher than normal. I vaguely remember this happening before, but I never paid much attention to it until now.

Has anyone else noticed a physiological change in their bodies during intense bidding? Or perhaps even before or after the auction, winning or losing?

Just about every time. I think it's part of the rush, and the thrill of buying a locker. I can't tell you how many times I anxiously peered around hoping nobody would outbid me on a locker. It's that moment when you hear "sold" and the auctioneer is pointing in your direction that you get the ultimate relief.