Splenda
Humans using splenda have experienced symptoms including: Bloating (severe), bright red rash and welts, chest pain, decreased coordination, diminished driving skills, dry heaves, dulled senses, excessive crying (emotional wreck), food poisoning symptoms (lasting for days), forgetfulness, generalized body pain, headaches, hypersensitivity to noise, hypertension, insomnia, irregular heartbeat, irritability, itching, knee and leg pains (shooting pain), lack of focus, moody, panic attacks, stomach cramps (severe), withdrawn and disinterested from life and feeling zoned out.