Hi hunni. I’m so sorry you’re still a way away from real answers. However, sometimes, a different face will think of something go that hadn’t been considered before. I know when I saw my new neurologist, he flagged up that sleep apnea could contribute to the pressure on my brain - I was tested and have the condition!
As for your previous doctor, ‘more training’ may mean he wants to specialise more, rather than he wasn’t fully qualified….