I had waswaas of shirk and just a few minutes ago i had a thought of an activity my deceased father did. I was thinking as a funny moment or it would be funny or relaxing if i did that. Then random words and whispered out of my mouth i was absent minded said f you. Then a few seconds later i gained back attention and focus on my mind thinking i cursed my deceased father and i got anxious thinking he will be cursed. But then i performed Isha prayer. I am disturbed by the waswaas and i am scared.