THROB ISSUE

Ladies, I have a question...So when I usually try to get off....I use to reach my climaxes until my clit is throbbing & I use to get my pleasure off that. And nowadays, when I try to get off again, I'm having a hard time making my clit throb on me!!! Is it normal that I want a throbbing sensation? How can I get that throbbing sensation back? 😓😓😓