We're not identical. We are as different as night and day, but we're close. I see her everyday, and probably spend at least 2 hours a day with her (and her little girl). We share a car (but live in separate areas in the same town) and I spend a lot of time driving her child back and forth to daycare every day. We share a lot of the same friends, and spend a lot of time at my parents' place with both our kids.

So, of course, we drive each other crazy at times.

I've always wondered if there would be any difference if we were just sisters, rather than twins. Is there really any difference between the two? (Note that I did say that we aren't identical. That just has a whole different realm of issues that I can't even begin to consider.) Would an extra year or two, or even more, change our relationship in any way?

Would we fight as much? Would we be as close as we are now? I have a brother, and while I love him dearly, our relationship is different. More distant. Is it because of the years between us, the fact that he is a guy, or just that we live far apart from each other? I have a half-sister, who I think about a lot, but can never remember her birthday, only see her every year or so. We aren't as close because of the way we were brought up apart from each other, but I still consider her to be as much a sibling as my brother is. But my sister? I can't even describe how close we are to each other. When she hurts, I hurt. Sounds silly, but true.

She's been having health problems lately, and I think I am just letting some of these thoughts spill out because I am worried. I can't imagine my life without her.