How do you get doctors to listen to you?

I have physical signs and my bloodwork reveals something isn't right. I'm having some other tests done, but because of insurance, they have to be done in a certain order and it takes forever. Months between. And in the meantime I keep getting more depressed because I'm in so much pain. Something or a few things aren't right.

What I'm experiencing is ruining my life.

Yet my brand new primary says, "I'm not worried about it."...

Wtf does that mean? I'm worried about it! I have almost no quality of life left and I get blown off?

How do you get docs to listen to you? How do you get them to care or do something? It's in black and white that my body is fighting itself. You diagnosed me fibromyalgia and said too bad.

I don't want to fall apart. I'm young and my son is young and I don't have any help at all. Why won't anyone take me seriously?