Need advice on undiagnosed conditions

Going through the same thing. It feels like no one actually cares.

push for tests. do the research so you know what you exactly need done. will this test possibly kill you? if it's a no then don't give up. the doctor will be getting paid so what's the point in the argument. if it's stressful or uncomfy, you asked for it. sadly I've had to make this exact point a lot.

Whenever I have this issue I end up switching to a new doctor or pressing until they do tests or assessments. If you switch to a new doctor I recommend starting conversation off with why you left the last one because I feel that doctors usually respond better when they know what you want them to do and that you’re not scared to search elsewhere if they fail at their job. You’ll avoid wasting time too if you can see from the start they’re going to do what it takes to get you diagnosed.