Technically correct, to some extent. You are stipulaing a extreme case of phobia. A phobia is something that causes fear within someone, to the extent that they will show some form of distress. A phobia will cause someone to become impaired, visibly distressed, and is due to a chemical reaction within their brain that overcompensates for the fight-or-flight mechanism.
Because everyone is different, one can agrue that a extensive sensation of fear can be diagnosable as a phobia, without the person literally freaking out. Each person will show distress differently. This chemical reaction may even cause someone to freeze up. But the fear inducing factor will always be present.
Many social interactions classify this as fear as well. Which is why you cannot talk about phobias without talking about fear as. Whether this be a fleating flutter of adrenaline as you see a snake, or a paralysing bladder release when a spder is seen, both are a type of fear, and equally relevant when discussing various fears and phobias
That being said, I would completely agree that i do suffer from arachnophobia. I've broken a bed trying to get away from a spider, I've twisted my ancle running away from one in another incident, and I cannot get close to a spider even in an enclosure. But my fear is always triggered once the stimuli is within my view though.




