Symptoms|Treatments|Side effects|Causes
| cause | % of members (num votes) |
|---|---|
| Head, neck or shoulder injuries |
50% (2)
|
| Drugs, including some antipsychotic, anti-nausea and antidepressant agents |
33% (3)
|
| Toxins, such as heavy metals and carbon monoxide |
0% (2)
|
| Tumors in the brain or spinal cord |
0% (2)
|
| Strokes |
0% (2)
|