Context: after eating a death cap (Amanita phalloides), you'd notice a few of the symptoms at first, but these usually resolve after a day or two. After this, you'll enter a latent phase where you feel fine, but your liver and kidneys slowly start to fail. By the time you notice, it's usually already too late.
It's not just similar, it's the same symptom - they both kill you through damaging your cells' ability to create proteins, radiation through damage to the DNA itself, and amatoxins from deadly mushrooms through blocking of the cell's ability to read DNA to create mRNA, which is necessary for protein synthesis.