No, the reports of him suffering from mystery "pancreatitis"/pancreatic ailment, and visiting the US for treatment, had started coming out around the beginning of 2018.
Pancreatic Cancer generally kills you in a span of months, but due to high quality care (I knew it was Pancreatic Cancer when I heard he was at Sloan Kettering in New York - arguably the world's best Cancer hospital), and a procedure known as the "Whipple Procedure" (possible in only some Pancreatic Cancer cases - I believe Parrikar got it done), they were able to buy him one more year.
Which is when we saw him continuing to work as CM of Goa in severe frailty even with a tube - at which point Rahul Gandhi/Congress tried getting meetings with him to take advantage of his sickness and put words in his mouth about the Rafale deal, and later tried toppling the Government as well - not to mention those Congress members who implied Parrikar's sickness was a result of him withholding secrets of a Rafale scam.