What should divers do after feeling unnaturally fatigued while diving?

After feeling unnaturally fatigued while diving, divers should prioritize their safety and health by ascending slowly and monitoring for signs of decompression disease. Fatigue can be an early symptom of a potential problem, such as nitrogen narcosis or decompression issues, which can be exacerbated by continuing the dive.

Ascending slowly allows for the safe release of nitrogen that may have accumulated in the body tissues during the dive, reducing the risk of decompression sickness. Monitoring for signs of decompression disease, such as joint pain, dizziness, or trouble breathing, is crucial because these symptoms may emerge after the ascent. Addressing fatigue appropriately is essential to ensure the diver's well-being and to implement necessary interventions if any health issues develop.

Continuing to dive to determine the cause of fatigue, taking a break, or trying to swim to the surface without proper ascent protocol can lead to dangerous situations and is not recommended. Each of those actions increases the risk of exacerbating potential hazards related to diving. Therefore, a cautious and well-informed reaction to unusual fatigue is essential for maintaining safety underwater.