you poor thing…you are not alone…Everyone suffers this to degrees..you just deal with it better as you get older….sounds a bit trite maybe…but it’s true…you gain life experience and problems that were once overwhelming become easier to deal with, to put in place….i would say nearly everyone in a relationship, for a start, gets this problem…otherwise why would need to be with someone if you didn’t miss them when they were away from you…it shows you care, and that often means pain….you’ll get there!!