What happens if you eat 30 Oleander petals ?

This can be very dangerous!! Oleander petals can cause poisoning with symptoms that include diarrhea, nausea, vomiting, vision disturbances, low blood pressure, nervous system interference, dizziness, disorientation, headaches, and sleepiness. Hives and rashes on the skin can also be present. The most common side effect are those involving the heart with disturbances in rhythm, palpitations, and increased rate which all can lead to cardiac arrest or death. If any of the above symptoms are noticed proceed to the emergency room.