I have a friend who studies medicine and on 1 occasion, when i was asking about a physical symptom of mine, and she said 'gem very often your body will do weird things, it WILL give you a strange feeling, you might have a little pain or a numb spot or anything really, but just because you have it, it doesnt mean it is dangerous or life threatening. sometimes you just have to accept these things'
I cant tell you how many times my dad has gone to ER with various complaints, once we even thought he had a stroke because he was talking funny,he has lost his short term memory, hellucinated, and lots of other weird and wonderful scary situations, but hundreds of tests later and after 59 years he is still here. We now believe those things could have been due to stress, he has something almost every day, but the point im getting at is he is still alive, he is still living.
The worst part of health anxiety is immediately thinking we are going to have the most aggressive disease in the world that cant be treated.