Sentence:  But when the worms are killed with the aforesaid medicines, you must driue them out without delay : for there proceedeth a vicious exhalation from them, which both destroyeth appetite, and hurteth digestion, and being lifted vpward, it causeth <WSD>swimmings</WSD>, and other euils. 
Meaning of the word marked with <WSD> tags:  The state of being dizzy or in vertigo.