Telepathic ways of knowing?

Do you think when you think of someone and the feeling is so intense that they are thinking about you too? or at least can feel that you are thinking about them?

Do you think this is what makes someone suddenly pop into your head (because they miss you or were thinking about you)? Do you think when you get a weird feeling in your gut or a small bout of sadness and a certain person pops into your head they are missing you?

do you think it is possible for humans to speak telepathically, even from huge distances?