Like a cat on a hot tin roof/ bricks (असुविधाजनक/ बेचैन होना): means when we are saying that you are nervous/ worried about something.
What's the matter with her? She doesn't look normal, she is like a cat on a hot tin roof.
Cry wolf (बिना वजह या बेकार में मदद मांगना): to ask for help without any reason
You must have heard a story of a shepherd who used to cry wolf too often.