yo zep, i understand you completely, when i played in front of about a 150 people at a guitar center in june my hands were shaking my knees were so wobbly i almost fell down like 3 times especially while big bending. Luke is right that's just nerves and you have to play through it. it doesn't seem to affect me when i'm playing with people who i'm comfortable with. something i did when i got the shakes was to take my hand and slap it against my thigh a few times just to get the blood flowing in it again cause it goes dead cold.
"Take my hand boss"