Amitabh wrote on his blog that the morning of Wednesday was very eventful for him.
"As I step out of bed in the early hours of today (Wednesday), Obama wins, B.R. Chopra passes away and Aishwarya calls that Abhishek is down with shivering and high fever. All three events come across simultaneously within seconds, " Amitabh wrote on his blog late Wednesday.
The actor was squashed between repeated attempts to check up on Abhishek's health and between "intrusions of the media seeking reactions to Chopra 'saheb'".
"I want to get through to Abhishek, media is worried as they have a deadline, " he added.
Amitabh wrote that Abhishek might be suffering in Kerala, "a distant location", due to "rough conditions, rain and dirt".
The actor expressed his irritation about the situation when questions about Chopra's death changed to queries over Abhishek's health.
A worried father, Amitabh managed to arrange a conference call between Abhishek and a doctor, who prescribed medicines to Bachchan junior.