Hi Alison,
I wouldn't say I'm a medical professional but I have done heaps of courses in natural medicine which involved learning anatomy and physiology and I've done other various short courses do to with medical stuff. I found having a bit of knowledge of the workings of the body helped me understand panic disorder a bit better, knowing what sparks of a symptom like dizziness during a panic attack helped me to rationalise what was happening and it didn't freak me out as bad as it once did.