Diagnostic practices may differ from country to country but my neurologist in Marseille sent me for MRIs of practically everything from the head down, plus:
EEG (The clockwork orange electrode rubber swimming cap test)
That felt more or less OK at the time. Not great. You have to open and close your eyes whilst they flash lights at you. Later on, after I'd got a forty minute bus ride across the city, another half an hour on the metro and the half hour shuttle bus back to the airport hotel, (I live in Corsica) I went completely wonky donkey and the receptionist called an ambulance.
I kind of fended them off and went back to my room to sleep.
And best of all, the EMG or nerve conduction test on my arms and legs. This is an instrument of pure torture. Basically elecrically charged long needles being stuck into your already jumping around electrically charged arms and legs.
It might be bearable if the person doing it is vaguely caring or prepares you for it but the rheumatogist, (not neurologist) who did mine was not very nice at all.
He had one catchphrase. "I am not a Nazi!"
He did a very good impression of one through.
Has Moth had these tests done? Because they won't be things you forget easily, put it that way.