Which group of symptoms could indicate the presence of acidosis?

The presence of acidosis in the body, which is an increased acidity due to an excess of hydrogen ions or a deficiency of bicarbonate, can lead to various physiological and psychological symptoms. Fatigue and confusion are commonly associated with acidosis.

When the body becomes too acidic, it can impair cellular function, disrupt metabolic processes, and affect brain function. This can manifest as general fatigue, a decreased ability to concentrate, and confusion. The brain, being sensitive to changes in blood pH, can exhibit signs of dysfunction, such as confusion and altered mental status, when acidosis occurs. Therefore, the symptoms of fatigue and confusion are indicative of the body's struggle to maintain homeostasis in the face of increasing acidity, making this selection the most relevant to acidosis.