How would you know if you have voodoo on you?

Its really not that complicated to know if someone has done voodooism on you, first of i have been spelled by my ex girlfriend,and found out she did voodooism on me,no matter what i did i always though about her,one time i even got drunk so i wouldn't think of her, turns out it just went allot worse,everyday you would think about that person like a dream, when she stopped doing it to me,my mind went clear from her,and now i feel kind of normal,but trust me you would really know if someone is performing voodoo on you.