My XBOX 360 "had" the red circle, but now it's fine. Should I be worried?

[chenster14]

So like I said, about 3 weeks ago, my 360 gave me the full red circle and a message on the screen said there were technical problems with the system and I was like "fucking piece of shit!" However, I was too lazy to call microsoft. Today, I made up my mind and decided to send my system in, but as I was checking out my system, it's back to normal, and I played about 3 hours of Halo 3 on it. Should I still call the support line?

 

[darthrevensithlord]

thats what happend to me and it worked fine but broke and wouldent read disks but it was an older model so u probly hav nuthing to woorry about