Acute Onset
it is called osteoporosis
Earthquake.
I think is a slump.
Alcoholism.
Thrush
The disease is called cancer. It occurs when normal cells undergo genetic mutations that cause them to divide uncontrollably and form tumors.
Spontaneous combustion.
A tsunami can happen if a large volume of water is suddenly displaced by an undersea earthquake.
When a tectonic plate suddenly moves, it is called an earthquake. This sudden release of energy occurs along faults or boundaries between tectonic plates, resulting in seismic waves. The movement can vary in magnitude and can cause significant damage depending on the earthquake's intensity and location.
Thrush
Tinnitus occurs in many disease states and circumstances, Meniere's Disease being only one of them. Less than 1% of all tinnitus occurs in Meniere's Disease.
The Floods that happen suddenly are called Flash Floods.