Hello and welcome to the A & P forum,
Your symptoms could be from stress and anxiety. I get the jelly legs once in a while after driving in the car in stressful situation, i.e. freeway at rush hour.
Anxiety can cause many physicial symptoms.
Keep posting. We are always here.
Moderator Anxiety ~ Panic Disorders
*~* Not a mental health professional at all *~*
Dx: Anxiety/Panic, Depression
"If you doubt you can accomplish something, then you can’t accomplish it. You have to have confidence in your ability, and then be tough enough to follow through.”