Hi and welcome, you will find a ton of support here. However, for your specific medical questions, not as much as we are not allowed to give medical advice. I would suggest seeing a doctor about your concerns. That said, one thing is for certain, continued use will only make things worse and worse.
We can all relate to the turmoil that you feel though.
I'd like to know more about your story, do share. What kind of athlete were you? I am sorry about your injury, I know that must have been devastating.