Is artificial sweetener not healthy?

As when I used to diet I used to get nauseous when I used it so much I mean in everything, that I wanted to sweeten.
I'm dieting now well watching what I eat trying to cut sweets like coffee, but i still get nauseous?
can I be allergic?
By the way im using *splenda*

is there a better brand?

VERY unhealthy!
DANGEROUS Read attachment source.

all sweeteners are worse for you than sugar!

its all bad.

using it often can be hazardous

artificial sweetners are worse then sugar cuz they are not natural...what i mean id, ur body cannot process it right and is unfamiliar with it...and all artificial sweetners have been known to cause cravings to get worse and people EAT EVEN MORE CALORIES CUZ OF THE CRAVINGS!...they make u just as fat as regular sugar...the onlt really healthy sugar with nutrition in it is fruit sugar and honey...consider using that...thats why people say diet pop is even worse the regular pop...they are all bad!

There will be some people sensitive (not truly allergic) to almost any artificial sweetener. You might have a reaction to it, most likely the chlorination irritating your stomach.

As far as I've heard, Equal has the fewest such reactions; but personally I hate the musty aftertaste.

Stevia (trade name Rebiana) has been suggested as a more natural alternative, but it has not been approved yet in the US. Couldn't tell you what it tastes like. There is a rumor (unsubstantiated) that the FDA is intentionally holding up its approval as a food additive, until some drug company can patent it as a diabetes treatment.

Yes they are worse for you than sugar is... I don't know what is messes up, it is one or your organs though... So if I were you I would you regular sugar. For your health