Wide World Parts

I cant control what I do, I have silly outbursts and cant stop saying silly words. I can be very annoying to some people on the internet as I just paste silly words in to the messenger but it seems to give me a thrill , stupid really, but I cannot help it!

I have really bad depression where I feel really down and other times where I feel really really happy and will tell people really silly stuff , pip my horn unecesarly ect...talk like a retard and shout at people out the window of my car telling them there silly.

I do not have a job right now and I have an ance problem which can seem to make the problem worse, although i dont think its the main cause of my depression although I wont no til they gone.

Im 19 teen male boy and I also have very angry feeling with the bad depression and at times.. its quite flucuation but nothings seems correct with me..

What is this likely to be, or am I simply a retard with a high IQ?