why?

I've been flattered by some comments over the last couple of months. Things like:
"You have far more of an impact on people than I think you realize..."
"We are so going to miss you, in more ways than you know."
"I learned so much from you, and it was all from peripheral contact..."


I guess I have some issues with low self-esteem or self-worth or something. I keep wondering what others see in me. I do not understand. I feel like such an outsider when it comes to groups...even the groups that *I* start! How is it that have an impact on people if I am so isolated and alone inside? What is it that you see that I don't???

*sigh* I don't really expect answers...I've asked this before and maybe I need someone with a sledgehammer to pound it into my head...but if you're reading this, well, clue me in. WHY?