4. Extreme Exhaustion
It is normal to feel tired when you are not sleeping well at night or if you are simply not getting enough rest. However, a person who has developed diabetes or another related health issue may feel exhaustion all of the time. This exhaustion continues no matter how much rest that a person gets.
A person who is suffering from polyphagia may also feel exhausted as an underlying symptom of the health condition that is causing the polyphagia to occur.
If you have been getting plenty of rest, but still cannot seem to get to the point where you are not feeling exhausted all of the time, there are several health conditions that could be the cause of this.
Low vitamin B, low iron levels, low vitamin D levels, heart-related conditions, and diabetes are all common causes of feelings of exhaustion. A simple blood test should be able to determine what is causing your extreme tiredness.