Big B's latest blog on him thinking about retiring, definitely doesn't come as good news for his fans. On his recent road trip to Manali, en route for his shoot for 'Brahmastra', Amitabh Bachchan wrote on his blog post that his body was sending him signals to retire. The 77-year-old actor added that his head and his fingers were thinking two different things but the message was clear that he should retire.