An alternate grading rubric (from a physician)

A friend was amused by Hannah's grading criteria and wrote the following.

I might put together a physical symptom scale as experienced by the
grader:

F:nausea and/or vomiting
D:eye strain and headache
C:Mild heartburn
B:neutral buoyancy
B+:slightly more buoyancy
A-:mild euphoria or a sense of general wellbeing and fitness