When you dream about someone does that mean they are thinking about you or miss you?

no because subconsciously your brain would not know what another person was thinking or dreaming.

In Some Cases, not all the time will this happen. but in many cases if you have a dream about someone they went to bed thinking about you. but in some cases you could just miss them. for instance, if you had a dream about someone you have liked then maybe you are missing them and want them back. Or in another case they miss you.