You've been having symptoms for years, for an unknown ailment, and the doctors can't get to the bottom of it. They shuffle you in and out of hospitals and offices. Not only are you frustrated by the delayed diagnosis, but you're worried that things are going to get worse before someone helps you.
Moreover, you feel like the doctors are negligent. They don't listen to you. They don't put time and energy into your case. They ignore your stories about your symptoms and just try some one-size-fits all approach. You don't actually feel like the doctors are giving you the high level of care that you expect.