Did you dream of your deceased grandmother before Fajr adhan and only you could see her?

assalamualaikum warahmatullahi wabarak atuhu dear mufti sir, i perfomred salat ul haja in order to wake up for my fazr prayers.right before fazr adhan i had a dream of my already expired fufi,in my dream i knew she is no more in this world.i was ill in my dream and she was continously walking towards me.i told my brother that i saw her but he was not able to see her.only i cud see her.some doctor also put injection to me in dream before the upward event occured.then my dream broke 5 mins before fazr adhan. jazakallah. waiting for your beneficial service.