Sudden and severe headaches are among numerous symptoms associated with both minor and major strokes, according to WebMD. Accompanying symptoms, such as dizziness and diminished vision and speaking ability, typically happen quickly rather than gradually.
The three main types of strokes are transient ischemic attacks, ischemic and hemorrhagic, WebMD reports. Transient ischemic attacks are what some people refer to as mini-strokes and often are associated with the same symptoms of more serious strokes. Though these attacks are generally not damaging on a permanent level, they should be taken seriously. An ischemic stroke is the result of blood vessel blockage in the brain caused by factors such as fatty deposits accumulating in arteries. A hemorrhagic stroke is caused by ruptured blood vessels in the brain.