"Jaya has taken ill... suddenly... and I am with the doctors now investigating the problem. It's never good to see her like this for she rarely gets in such condition, " the 67-year-old posted on his blog.
"And because of this she is most reticent to any doctor visit, and more tablet treatment. But we persist and they have done their bit and gone. The medications have been administered."
Amitabh said he had to go to an event, but cancelled it.
"Had to go to Mahesh Manjrekar's audio release this evening, for his film ('City Of Gold') in Marathi on the mills and mill-workers problems in the city, ages ago. But had to cancel because of the situation in the house.
"Spoke to him though at the function, and he put me on speaker for the media to hear through the mobile. Feel terrible pulling out of such situations at the last minute, but this was unavoidable, " wrote Big B.