Would the woman, God forbid, be considered an infidel due to the whisperings she experiences during prayer, purification, and matters of creed, such as imagining that she hates the name of God or hesitating about the number of times to wash her limbs during ablution?

You are not an infidel, but a Muslim woman who fears Allah. So, do not pay attention to whispers and imaginations, for turning away from them is the cure. There is no sin upon you for the whispers that cross your mind as long as you dislike them. Such a thing happened to the Companions, and the Prophet, peace and blessings be upon him, said: "That is pure faith." There is no need for ghusl (ritual bath) or distress. It is imperative to disregard whispers related to creed, purity, and prayer. Wudu (ablution) is performed by washing each limb once; a second and third wash are sunnah, and no more than that should be done, due to the prohibition of extravagance. Do not pay attention to whispers that cast doubt on your acceptance of other methods of purification; rather, maintain the most complete forms.