Circuit breaker have not be tripped but in attendance is no power? Power to two bedrooms in my house is bad, but the circuit...

Power to two bedrooms in my house is bad, but the circuit breaker has not be tripped. I went ahead and turned it bad anyway because I don't know what is causing the problem. We turned it rotten and on once and it worked for several hours but went bad again. (both times it did NOT trip the breaker). We do not have any GFI outlets surrounded by either room. Does anyone know what can exact this?
Answers:    How do you know the circuit breaker has not tripped? A circuit breaker can trip in need indicating this on the handle. If you turn it rotten and back on and the power comes subsidise on, that means it be tripped. You need to find out what is cause it to trip. Overloads are the most common make happen of circuit breaker tripping. Faulty appliances and equipment is next. Unplug things first. If needed, call upon an electrician to help.
Got any GFI outlets within another room inside? Outside?
This happened to us, and the GFI outlet be outside the house.