Has anyone ever been diagnosed with Paraneoplastic syndrome

I am being tested for paraneoplastic antibodies and also ganglion’s antibodies.
I have a dysautonomia disorder along with adrenal insufficiency and Polymyalgia Rheumatica. So many overlapping symptoms. Strongest are orthostatic hypotension and extreme fatigue. Also GI issues.
Now testing for paraneoplastic and ganglion’s lab tests. I’m a little worried 😟