I get some adrenaline, but no shakiness since the first few times I've played live, and that was when I was in a big hand.
With one exception: I was playing a $20 home tourney, and I flopped two pair, A's and 5's, IIRC. A guy bet to 800 (pretty big in the T5-base game). His big chips were hiding behind his stack, so I asked how much he had, and he wouldn't tell or show. I said "you really should have your big chips out front", which was met with a several guys, including the villain, saying things like "lighten up", "it's not a casino", etc. So I was starting to get on edge. As I was contemplating my raise, he grabbed five more 100's and threw them out. When I said he can't do that, he replied "you hadn't done anything yet, so it's still my turn." Plus, more protests from a couple other players. At this point, I'm fuming, and I raise all in (which was sort of my plan anyway). My hands were shaking as I put my chips in, and one of the jerks starts making fun of me for shaking. Villain calls with AJ or something, and I bust him.
Stupid thing is that it was my game, but the host asked last minute if we could have it at his place. I brought the chips, the ipad for blind levels, and a folding poker table. The villain was his brother. I usually like the guys, more so the host, but they're the type of guys who think rules don't always apply to them, and somehow they could override, because "house rules". I'm learning a lot about standing up to A-holes who think rules are optional.