My twitter got hacked please help?

[Alyssa]

Yesterday I got on my twitter to find tweets I didn't tweet. They said: "Click here to find ways to burn off body fat[insert web URL here]" Also, I had found that the hacker also sent all of my followers a DM that said the something similar to the same thing, only they said that someone wrote a bad blog about them and someone was spreading rumors about them with a link.

I've tried letting these accounts know in tweets so they can know that it's not me, its the hacker ( the hacker went over the daily DM limit, im still on it.) and nobody is paying attention to the tweets.

What can I do to stop getting hacked?