Maybe somehow you're protected. I don't know what precautions you may or might have taken. I don't even know anything about your adversary; your enemy. I have a saying, "the wages of sin are eventually death, by Death."
Well, the thing about curses is that it depends on how much of an emotional state or how much of a malicious bolt the sender put forth, in the ritual or into the intent, that can make the curse strong. I've seen and heard of curses working the night of a cast.
Curses should work very quick, or at least start to take affect very quickly. Like a head rush. Things that can signify a curse are sometimes followed by an omen. Generally the way that curses carry themselves out, is within the caster's idea of symbolism that he or she may incorporate into the ritual. It really depends upon the caster's paradigm shift. It is like if one does this then that should happen. It is what you believe in or about.
I think this makes a good topic on what sort of symptoms to look out for in black magick. This can be omens, nightmares, anything malfunctioning of the body, air thickening, negative thoughts, emotions anything out of the ordinary with consistent occurrences, and all of which can't normally be explained.
If one is to think they are under attack of black magick, they should keep the lookout of objects put in their yard, possibly put there by an enemy. One should also keep track of personal belongings, because a malicious caster can use something that has your essence imbedded into it. A malicious caster will generally, or sometimes, throw negatively charged objects onto the property of the intended target, when they don't have a personal object of that person(s). Sometimes just knowing the person's name and date of birth suffices enough.
If someone can almost die from internal bleeding, from the result of black magick, then I suppose black magick is very real. I suppose it's surreal.
I just got a bright idea of casting a spell into a document on a USB drive, then to have that document sent to whatever email that I so choose, as a poem, because generally when someone reads a poem they read it aloud, and everybody loves poems.
So cursing a program document, on a USB drive, sounds like a very creative way to curse someone. If you really think about it. . . it can get more creative. It is not like opening up an envelop with negatively charged voodoo remains. There are more details to this than is discussed. All these spiritual rules and possible laws that come to mind.
I think he was lying.