when all other phobias are assosiated with stimulation of sympathetic nervous system, the only phobia assosiated with giddiness and falls is

Applied tension is used for blood injection phobia where there is hypotension and falls, in these patients falls is because of vasodilatations when we use applied tension there may be constriction of hand and leg muscles which prevents vasodilation and prevents falls. Ref. kaplon and sadock, synopsis of pschiatry, 11 th edition, pg no. 845