SNS Topics getting deleted after sometime automatically

I am using AWS on console itself. I have noticed an issue that when i am creating a SNS topic and i make a subscription and it is confirmed from the receiver. But after an hour or two when i go back the "topics" console i can't see the topic that i have created and when i go to the "subscriptions" console i can see my subscriptions but when i try pressing the hyperlink directing towards my topic, I get this message :

Couldn't retrieve topic attributes.
Error code: NotFound - Error message: Topic does not exist

Anyone has any idea on why this is happening. I am not even changing my AWS region in this entire process. And i have the Full SNS access to my role