Restlessness
Signs of circulatory failure
Bleeding or hemorrhagic manifestations including:
Leakage of plasma from vascular compartment leading to increased blood concentration and manifestations of shock.
These symptoms when not treated may lead to Dengue Shock Syndrome, which when not treated immediately may lead to profound shock and eventually death.
Warning signs of Dengue Shock Syndrome are
Severe abdominal pain,
Vomiting,
Change in temperature,
Mental irritability.