Symptoms of overdose may include:
drowsiness
inappropriate happiness
sharper senses than usual
changed awareness of time
red eyes
fast heartbeat
memory problems
feeling that you are outside of your body
mood changes
difficulty urinating
constipation
decreased coordination
extreme tiredness
difficulty speaking clearly
dizziness or fainting when standing up too fast
Sounds like what maryjane smokers are looking for.
Symptoms of what substance causes the following:
headache
personality changes
changes in behavior
confusion
irritability
drowsiness
breathing during exertion
muscle weakness
twitching
cramping
nausea
vomiting
thirst
inability to perceive and interpret sensory information
Bradycardia abd widened pulse pressure can begin followed by cerebral edema that can lead to coma or death.
Water. Water intoxication can do all that.