Is there such thing of caring too much?

For my entire life, my parents and relatives have told me that I care for other people a lot. They have said that I am not happy when other people aren't happy. I guess that that is true for the most part. I of course put my needs first at times, as everyone does, but when someone in my family is hurt or a friend is in pain, I can't help but feel it. This has been very evident recently. I have been blessed to be cast in the musical Beauty and the Beast with CYT. The only downside, my brother didn't get in. I put a smile on my face when I go to rehearsal, but in my mind I can't help but to think of my brother. I just keep thinking about why I am here, but he is not. In my dreams, he is there instead of me. I truly mean this because if I hadn't gotten in, I would have gotten over it after a few hours. Like my brother did, he was fine after awhile, but him not being there with me just makes me sad. The other day, all of the little kids were gathered and I looked at them. When I didn't see my brother, it took all of my strength to hold back tears. I am grateful that I can care for other people as much as I do, but I would not wish this fate upon anyone else.  The mental pain and emotional suffering is unbearable at times. I understand that it is the type of person I am meant to be, but it is hard to go through everyone else's pain on top of my own. My mother tells me on many occasions that my caring personality also makes me very sensitive. I guess that is why I cry when my brothers continuously make fun of me. With this wonderful gift that many have told me I have, I am trying as hard as possible to use it to help other people. I hope that I can honor God with this gift he has given me and I will use it to the best of my capability. This gift if going to help me achieve my life of dreams. I know it will!