I am really sorry to hear that you have been going through this. I have definitely gone through health anxiety myself. I would spiral worrying about myself or my family and I would spend hours researching.
I can understand your apprehension about taking medication, you are not alone in feeling this way. However, it seems to be causing quite a lot of distress as you mentioned feeling panicked about this. To answer your question I do think counselling is a great idea. I have used some techniques from CBT for myself to address the root causes of my thoughts related to health anxiety which has helped me to change my habits.
I can completely understand that it can be truly exhausting worrying and thinking about our health all the time.
Please keep us updated! We are definitely here for you!