Is it common for adult siblings to still harbor negative feelings since childhood?

Wow-that sounds a lot like how things were between me and my oldest sister for years. I kept trying to be nice to her, show her I loved her, etc but things would always go sour and she'd make me out to be the bad person even though I'd done nothing at all. It took a long time, but what changed things was a letter I sent her. I told her that I really wanted to have a sisterly relationship with her and didn't understand why we couldn't get along. I asked her to please tell me of any past resentments or things about my personality that made her angry. She responded by calling me, crying, but also telling me things that made me want to scream but I kept silent, stayed welcoming, and we agreed to keep working on our relationship. I realized some things were just her perception, some things were traits I shared with my mom that I didn't realize I had been, and some she realized she had overreacted to. Things did not change overnight and, if one of us had given up easily, nothing ever would have. It was hard to say things to her that SHE did or traits she possessed b/c she is ultra sensitive, but I did it slowly and with as much delicacy as I could. We are still not super close, but we enjoy talking to each other about once a week and seeing each pther a few times a year. It is amazing how much some siblings build up over the years. Incidentally, she is the oldest and I am the youngest with a big distance and a sibling in between us. She resented all the things I had when I reached my teen years but never realized that I worked to pay for most of it myself and that, with only one mouth to feed instead of 3 at home, mom had more to spend on things.