Yes, blood tests for the usual markers... immunoglobulins A, M, -- the alphabet. No, trends, but I've had Myasthenia Gravis for 22 years, so that is the king of comorbidities.

If you haven't heard of MG, I explain it like this: if i see a curb while walking, my brain says to my nerves "send a message to your legs to step up" -- but my legs say "never got the message". So, I stumble.

Damn acetylcholine receptors. I'm not drunk, I'm just uncoordinated.