Why no one didn't find about vishnu's illness?

Vishnu is suffering from memory loss but till now no one didn't findabout it, he talks rude to nani, akash and then he talk to meethi also, but they sense something and didn't find about his condition na. Eventhough muktha also didn't find about it na. But yuvi will find for sure, do share u'r views

bcoz its UT.and oder oversmart ckts r 2 oversmart 2 find abt it.mkat & aksh & naani these 3 r gud only 4 their selfishness & benefit and mth has bcum dumb.🥱🥱