Yes there is an evil eye. There are different kinds. As suggessted previously there is the kind the primitive (no disrespect intended, just implying a more simple society) groups believe in. These can be anything from a simple angry gesture, to an actual curse. Some people who would say they don't believe in the evil eye can cause the negativity assocated with such a curse. It sounds like you believe you have a negative energy, which can only be battled with positivity: prayers, spells and other forms of directed thought are your best weapons. Trying to find the cause can help, and doing good for others can also make a difference, especially if it was caused by doing something unkind, even if unknowingly.