Is it possible to be emotionally connected?

so i have a best friend that i talk to mostly everyday but through txting. and one day we hadnt spoken and i was talking to another friend via IM, all of sudden i felt this crashing pain hit me out of no where like it was absolutely a heartbreaking pain, and i was wondering why i was feelign this way but with nothing to think of i couldnt sleep at all that night. then we talked the next day and as we were talking she told me she hadnt slept the same night either and as i was describing what i felt she said she felt the exact same way! and i even provided at specific time and i got that spot on! can it really happend? be emotionally connected with someone you dont really see at all but yet are close?