A lot of people think nighttime cramps are simply because of a calcium deficiency. Still, persistent nighttime cramps may be a sign of kidney problems.
Kidney dysfunction can lead to electrolyte imbalances, particularly involving calcium, sodium, and potassium—minerals essential for muscle function. Cramps at night are commonly seen in the early stages of kidney disease.
5. Bad Breath or Metallic Taste in the Mouth Upon Waking
A metallic taste in the mouth is not always caused by digestive issues. If accompanied by fatigue or loss of appetite, it may indicate l kidney dysfunction.
