See, this often happens due to mistakes (unless electrolytes):
Dehydration - due to low water volume it is very easy to get dehydrated even with normal electrolytes.
Too little carbohydrates. Even ketogenic diets need some carbs. Less than 30g/day or so, but still. The bottom limit has not been established but is probably dependent on too many variables. It is pretty easy to mess this up as the margin is thin.
Too much sodium to potassium. Mostly a problem if you're fuelling keto with processed foods. Processed meat tends to be loaded with sodium. To fix, eat potassium rich greens or plain old potassium tablets (preferably citrate).
Dehydration - due to low water volume it is very easy to get dehydrated even with normal electrolytes.
Too little carbohydrates. Even ketogenic diets need some carbs. Less than 30g/day or so, but still. The bottom limit has not been established but is probably dependent on too many variables. It is pretty easy to mess this up as the margin is thin.
Too much sodium to potassium. Mostly a problem if you're fuelling keto with processed foods. Processed meat tends to be loaded with sodium. To fix, eat potassium rich greens or plain old potassium tablets (preferably citrate).