idk what this is, maybe I'm over reacting. my dads a doctor so I hear a lot about this, and I don't want to talk to him, don't wanna freak him out.. but just a few seconds ago, I bent my legs and they started shaking in controllably and then I would stand up straight no problem. is this normal? also a few weeks a go I was getting out of bed and I just coudnt control my body I felt sooo weak I tumbled over and grabbed my dresser, I figured it was cause I got out of bed quickly, I shake a lot in my hands.. this also might be because I was in a very stressful situation a few hours ago and started shaking afterword.. so just wanted to get your input(is shaking normal, especially in stressful situations?)