Seclusion.

Hao Ren was eating his breakfast and Han Lingshi was sitting next to him. She could see that he was not happy, but there was no other way to about this situation. Last night when they came home, Hao Ren fell on the ground with his forehead covered with cold sweat, 

Han Lingshi was scared and she called Hao Xinyuan and Tang Zen to check. However, by the time the old man came, Hao Ren had calmed down. It was just a moment of pain that rendered him so helpless. Being a doctor himself, Hao Ren knew what happened just now. 

Han Lingshi asked him what happened and he decided to come clear about it. Turned out, in the morning, he had forcefully tried to push the spiritual energy in a few pores and held it there through out the day, but when he returned home, he could not hold on and had to let the energy go back out.