97 Blinkers.

In my 97 Jimmy, today I noticed that when I go to turn on my blinkers the little arrow light in my truck doesnt blink anymore. And my light outside doesnt work when it doesnt blink. The light inside the truck just stays lite, and then when it does blink once in a while the light outside works. Any one know what could be wrong with the truck? Or any of you have the same problems?