Atropa Belladonna, aka deadly nightshape, is an extremely toxic plant that produces dark berries. Deceptively sweet, some animals can safely eat them, but humans are not among them. Two to five berries can be a lethal dose and you ate far more than that. The symptoms of belladonna poisoning include dilated pupils, sensitivity to light, blurred vision, tachycardia, loss of balance, staggering, headache, rash, flushing, severely dry mouth and throat, slurred speech, urinary retention, constipation, confusion, hallucinations, delirium, and convulsions. Fun!

Shit.