Fighting or fleeing, unlike in humans, isn't connect to feelings. Feelings come from a very structurally complex area of the brain known as the limbic system. This portion of the brain is significantly higher in evolutionary terms and the part we share with other mammals. The limbic system's major functions are cognitive and emotional. It controls your feelings, experiences and memory.
Memory affects the ability to learn, which is a neocortical function.
The limbic system is a vital part of the brain and important to human preservation. This part of the brain also controls many of your bodily functions. This helps to explain why emotional state is so important to health. Bodily function control and emotions arise from the same brain structure. It also acts as your central control panel, using as its input the information from your senses of sight, sound, bodily sensation, taste and smell.