One of the many tests I have undergone in hopes of a diagnosis is EMG and nerve conduction (which would diagnose Guillan Barre among other things) but results were normal. I have also undergone imaging tests like MRI of lumbar and brain, and those were clean. Inflammation markers like sedimentation rate and C reactive protein are not elevated, so polymyalgia rheumatica doesn't seem likely either. Strange how all tests are showing normal, but based on my symptoms I'd think something would show up as off in them.