What could nonvisable(but felt)twitching in my legs be from?happens after i work out or a long walk, i have dysautonomia & lupus could it be from that

Not certain it is : This internal sensation could be related to neurologic, vascular or muscle systems. This can be evaluated with vascular testing , muscular testing and neurologic testing. We need to know blood levels of a variety of substances that can be related to this such as calcium , magnesium, electrolytes etc. while you have lupus not everything that happens is related to lupus. You are a normal person.