Hello Sir, I Amrat i am 28(M) - 6 ft - weight 104kgs. I am a beginner weight lifter. My problem is that i get tired very quickly,i got heavy sweating after getting some work done, and after that i feels totally exhausted. No diabetic background, but i am fond of sweets. My mother have thyroid but it arises after giving birth to my younger sister, way back in 1987.till now she is having her medicine on. please guide me that how can i increase my stamina naturally?