Twitter Are Becoming A Social Spam

Today, I just logged to my Twitter account to check some messages that my friends sent. And in my upades had some tweets that I hadn’t update. I really can’t understand this issue. Here are some pics:

3676901241 56861fdeba3676901243 d8881468363676901245 f8ed19b1e5Or you can see those updates on my Twitter account. I was very surprise about this issue. Is my Twitter account has been hacked? Or Is Twitter is a social spam?