What's he mean by "shivers?"

Native speaker’s answer
Rebecca
Usually, to give someone the "shivers" means to make someone feel scared or nervous. In this song, it means to feel so in love that it's almost uncomfortable, but please remember that the phrase is not usually used in this way in spoken English. Ex: The house was abandoned and inside everything was dark and dusty so it gave me the shivers. Ex: Her divine beauty gave me the shivers.