I sympathize with you pliepla. Giving up a sport that you have a deep connection to isn't going to be easy. I get that. Hopefully, you can find some low impact aerobic activity that will replace your mountain biking since being active is something important to you.

That really stinks about your country's healthcare system's policies. I mean, it sounds like, patients aren't given any control over their own healthcare there. That's scary. Well, can you at least petition to have your cardiologist and neurologist say "no!" to the GP and Psychiatrist about not prescribing you an antidepressant? Isn't there an appeals process you can go through?