The context seems to be 'patient-centric', so I'd steer clear of 'pro-speak'.

Since the asker has specified that this is a questionnaire (presumably for patients), I'm not sure that "motor state" is the best choice. As has been mentioned, "motor state" is medical jargon.

The "Non-motor symptoms questionnaire" for patients from Parkinson's UK uses the terms "movement problems" and "movement symptoms":
http://www.parkinsons.org.uk/sites/default/files/publication...

The term "movement problems" is also used on this general information page from WebMB at http://www.webmd.com/parkinsons-disease/news/20100315/treati... :
"'While the main symptom of Parkinson’s disease is movement problems, there are many other symptoms to be aware of, including sleep disorders, constipation, and problems with urination and sexual function,' says lead guideline author Theresa Z. Zesiewicz, MD, of the University of South Florida. Without treatment, these symptoms can cause as much pain and discomfort as movement problems and greatly affect daily routines and quality of life.'"

Here is another example, from http://www.bottomlinepublications.com/content/article/health... :
"When people think about Parkinson’s disease, what comes to mind are the characteristic movement problems—shakiness, rigidity, slowness. Yet even very early in the disease, Parkinson’s brings other symptoms that have nothing to do with impaired movement."

I'd try something like this as a translation:
In the last month, did your mood, ... change when you were having movement problems?


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Here is a "Summary of Evidence-based Guideline for PATIENTS and their FAMILIES" from the American Academy of Neurology (PDF): https://patients.aan.com/globals/axon/assets/7004.pdf
This fact sheet also uses the term "movement problems" (p. 1):
"I know PD causes movement problems.
What other PD symptoms are there?
The main symptom of PD is movement problems. However, there are many other symptoms to be aware of. These include sleep, fatigue, and mood disorders."
The term "motor" does not appear in this document.

"Movement problems" is also used 5 times in relation to Parkinson's disease (or PD) in the 2013 book Ask the Pharmacist: Drug & Health Information for the Consumer:
http://books.google.fr/books?id=L-bJN9Dygk8C&pg=PA486&q="mov...
In contrast, "motor" does not appear once in this book for a general (non-medical) audience:
http://books.google.fr/books?&id=L-bJN9Dygk8C&q=motor

Lastly, please note that the vast majority of search engine hits for "motor state" involve cars and other kinds of machinery... The hits related to the medical field (for example at https://www.google.com/search?hl=en&q="motor state" Parkinso... ) tend to involve research papers.

It's really a question of matching the language to the audience. In this case, it's a questionnaire for patients. So, while "motor state" is a perfectly good technical term for medical specialists, it does not seem the best choice here.

"Mobility State Self-Assessment"

http://clinicaltrials.gov/show/NCT02153645

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3404130/

Mobility limitations in older adults are dynamic, and improvement (as measured by annual transitions) occurred for a large number of Medicare beneficiaries. High total annual costs were observed in groups that transitioned to worsening mobility states

A mobility transition was defined as a set of 2 states: the first representing the person’s mobility state at an interview, and the second representing the mobility state in the subsequent interview (1 year later).

For any given initial mobility state, most respondents were most likely to either remain in the same state in the next year or actually improve.

Although this methodology is widely used in epidemiologic studies, the possibility exists that it could have biased our results if there were differential rates of inaccuracies between the persons in different mobility states