North Korean leader Kim Jong-un is getting fatter, leading to rumors that he is suffering from stress and symptoms of heart disease, Free North Korea Radio reported Wednesday.

The rumors say Kim has been suffering the symptoms since the execution of his uncle Jang Song-taek and has been treated for them since January.

When Kim first appeared in public, he appeared to weigh around 100 kg -- chubby, but not morbidly obese. But he started gaining weight at the beginning of this year.

He has been gorging himself with food and drinking due to stress since Jang's execution last year, according to the rumors, showing signs of depression and facial paralysis.

The Seoul-based radio station run by a North Korean defector said that Kim's physicians noticed that he could not use his left arm freely and started losing his hair.

He has reportedly been undergoing treatment every Tuesday and Friday, but North Korean authorities are anxious to keep these rumors under wraps.

Recent photos of Kim show that his chin, cheeks and neck have filled out even more and he has become stouter. He often supports his back with his hands, which may be due to his weight.

