Phobia is defined as
Phobia is defined as an irrational fear of a specific object, situation or activity, often leading o persistent avoidance of the feared object, situation or activity. Common types Agoraphobia Social phobia Specific phobia (Ref: A sho textbook of psychiatry, Niraj Ahuja,7th edition, pg no 92)
Palpitation on thinking about a definite entity
Excessive unreasonable fear about a specific situation
Perception without stimulation
Altered perception
Anxiety disorders stress disorders and grief