Note: I've been giving you guys some softballs since most my questions are outside the scope of anesthesia. This case isn't too tough, pretty classic, but get this question too quickly though and I'll start with the stuff you can't google

26 yowf comes in c/o Diplopia that comes and goes.

HPI questions? ROS? Physical exam questions? Labs rads? I'm not of the opinion you have to ask ALL these. Just suggestions . I believe if you know the answer, pursue that answer instead of ordering every test under the sun to exclude all your diagnoses at once, considering you must rule out life threatening conditions if you suspect them.