Final answer:
Miriam is experiencing signs of a heat stroke due to exercising outdoors in high temperatures. The symptoms include nausea, dizziness, and vomiting.
Step-by-step explanation:
Miriam is experiencing signs of a heat stroke due to exercising outdoors in high temperatures. The symptoms of a heat stroke include nausea, dizziness, and vomiting. Another common symptom is a rapid and shallow breathing pattern.
Learn more about heat stroke