Lack of idea

Many peoples knows exactly something called "songless", meaning that you don't have any song to sing or you got nothing in your mind to sing it out, eventhough they are want to sing. In other case, sometime people dont have any idea or inspiration in their mind (lack of inspiration), moreover they have to do/write something. Usually they are trying hard to find the idea or inspiration. in this situation, can we called it as "idealess or inspirationless??". Although we hardly think to find that idea, sometimes that idea never come. Not only get confuse but also feel a little bit dizzy is something that we got if we are overact dealing with this..