No, I'm not scared of aspartame because the food standards agency has approved it, and continue to do so. They have no reason to lie about it.
The daily mail is an inflammatory, sensationalist rag that sees cancer in everything that exists and diabetes in most of that.
At some point, you have to accept that you are going to die, and that you are not going to live forever. While I take my health seriously, I do not sit up all night on Google looking for things that are bad for me, because that is not healthy behavior.
There is no Big Cover Up. Humans are simply not capable of sustaining that behavior for long periods of time.