Your symptoms are unusual. You might be describing panic attacks. It is also possible that you’re describing something else entirely.
Panic attacks can be triggered by a memory, as you have described, and they can also happen seemingly randomly. Alternatively, it’s unusual to experience your degree of physical trembling during panic attacks.
You should undergo an evaluation by a primary care physician. Ask your parents to assist you in this endeavor.
If you are already in contact with a mental health professional, report your symptoms. He or she can determine if your symptoms are psychological in origin. Having both a physical and mental health evaluation will give you the best chance of determining the cause of your symptoms. Please take care.
Dr. Kristina Randle