2-Fatigue All three thyroid hormones, i.e., TSH, T3, and T4,
2-Burning in the upper abdomen
It is a sensation of annoying burning between the lower part of the sternum and the navel. It may be mild to moderate, intermittent, occurs gradually and increases with time. Sometimes, the position influences greatly in this symptom by increasing or decreasing the burning sensation. Its comes next to abdominal pain, and it happens during or after a meal. This sign should NOT be confused with heartburn, as its symptoms usually originate pain in the chest and can radiate to the neck to the throat. Instead, burning is limited only to the abdominal area.