Do I need to replace my transmission or the torque converter and the pump. There has to be some form of logical explanation for these issues. Can anyone suggest any fixes?

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My car seems to run just fine when started however after shifting into gear easily it will drive fine until it gets warm then it starts to stall as if it no longer wants to go any faster than 30 or 40 miles an hour, though it will make it home 5miles away but rather slowly. There is also a whining noise coming from the left front fender area. What could that be? Also my windows works when they want to, the dash light is off and the gages works when they want to. There has to be some form of logical explanation for these issues. Can anyone suggest any fixes?