Add physiotherapy category

[jieqiboh]

Resolves #79

Questions:
pain_stiffness_day

• Pain/stiffness during the day: How severe was your usual joint or muscle pain and/or stiffness overall during the day in the last 2 weeks?
  INTEGER
  0, 1, 2, 3, 4, 5

pain_stiffness_night

• Pain/stiffness during the night: How severe was your usual joint or muscle pain and/or stiffness overall during the night in the last 2 weeks?
  INTEGER
  0, 1, 2, 3, 4, 5

symptoms_interfere_tasks

• How much has your symptoms interfered with your ability to walk or do everyday tasks like cooking, cleaning or dressing in the last 2 weeks?
  TEXT
  Never, Rarely, Sometimes, Often, Always

symptoms_change

• Have your symptoms improved, worsened, or stayed the same over the last 2 weeks?
  TEXT
  Never, Rarely, Sometimes, Often, Always

symptoms_need_help

• How often have you needed help from others (including family, friends or carers) because of your joint or muscle symptoms in the last 2 weeks?
  TEXT
  Never, Rarely, Sometimes, Often, Always

trouble_sleep_symptoms

• How often have you had trouble with either falling asleep or staying asleep because of your joint or muscle symptoms in the last 2 weeks?
  TEXT
  Never, Rarely, Sometimes, Often, Always

how_much_fatigue

• How much fatigue or low energy have you felt in the last 2 weeks?
  INTEGER
  0, 1, 2, 3, 4, 5

anxious_low_mood

• How much have you felt anxious or low in your mood because of your joint or muscle symptoms in the last 2 weeks?
  INTEGER
  0, 1, 2, 3, 4, 5

medication_manage_symptoms

• Have you used any medication to manage your symptoms in the last 2 weeks? If yes, how often?
  TEXT
  Never, Rarely, Sometimes, Often, Always

Link to doc describing physiotherapy category