Systemic manifestations may include weakness, nausea, vomiting, diarrhea, sweating, vertigo, tachycardia, headache, syncope, muscle cramps, paralysis, hypotension, arrhythmias
[drralph.net]
Effusion & Cardiac Activity.
[books.google.com]
TABLE 2 Symptom Patterns Associated with Ciguatera Poisoning Gastrointestinal* Nausea or vomiting Profuse, watery diarrhea Abdominal pain Neurologic † Numbness Paresthesias Vertigo
[aafp.org]