Maybe that’s why your still fatigued a bit.
Here’s some main electrolytes…
The primary electrolytes that your body uses to carry out these vital functions are sodium, potassium, magnesium, calcium, phosphorus, chloride, and bicarbonate
Maybe try to replenish them or look for them in food but when trying to replenish them since there’s many you probably have to have a lot like a lot of bananas or watermelon but not all will be there less you expand your range of foods.
You can also buy coconut water.
Note too that your heart needs them. They need the electrolytes to the SA nodes etc to pump the heart.