It does sound like you may be over bowed!
Unless adrenaline works different on different people , you should be able to draw with ease. When a shooter buck comes into range and the adrenaline is flowing out my ears , I have to make a conscious effort not to draw my bow so hard I snap the string or pull the cams off.<img src=icon_smile_big.gif border=0 align=middle>

"Nocked,cocked & ready to rock"