My mum got her spine severely damaged in an accident, then they dropped her off the X Ray table onto old fashioned rails (like railway tracks they moved the huge x ray machines on..and no one "saw it" you know like 4 folk there and they all "didn't see it", gutless scumbags. Mum got her spine snapped protecting a patient and those swine hadn't the spine of a jellyfish)
and they used an x ray dye that they KNEW caused damage to the spinal cord
so she ended up in agony, and a psychiatrist said she had "neurasthenia" (that was in late 60s).
no it was NOT neurasthenia, they changed it iirc first it was diagnosed as anyklozing spondilytis (spelling?) and then they decided it was arachnoiditis
she had scaring building up on her spinal cord nipping the nerves causing incredible pain, it was not all in her head
one of many reasons I regard a lot of the medical profession as arrogant, inhuman, callous, useless bastards.