Having a mother with any kind of thyroid condition does put you at increased risk for any kind of thyroid condition. Easy enough to diagnose. Your doctor can perform a simple blood test called a TSH. That will answer the question definitively. However, another common cause of fatigue is inadequate sleep. If you're getting less than 8 hours per night on a regular basis, challenge yourself to get 8 hours/night and see if that doesn't solve your problem. If not, definitely see your doctor about other causes.
Alex
Happiness in this World