Neuro tests okay, but i crash after standing fwiw

just got my panels done again. everything is apparently ‘in range.’ yet one minor trip to the mailbox leaves me with textbook PEM the next day, and i can barely pace around the kitchen.

it makes me wonder if standard testing even catches dysautonomia or orthostatic intolerance enough to explain what’s actually happening? has anyone found a way to track that pattern without just logging every crash?