Same here. People keep telling me it's not, but it is, even when I happen to ingest it while unaware I've done so.

I can tell when a mixed drink uses a soda with Aspartame in it. My mouth instantly feels like it's covered in a thin film of plastic and the migraine is usually just around the corner.

Everyone in my family, including uncles, aunts, cousins, have the same reaction, too.