No Toilet Challenge - Week 6 & 7: Rash Scares and Dynamic Changes

Hello,
I didn't do an update last week and I'm a little late with one this week. Why? Quite frankly I have very little to talk about. I decided that instead of posting an update where I had nothing to say, I would wait a week and then post an update for the fortnight.
Which is fine... Until two weeks pass and there isn't much to say.
About the only thing of note happened a nights ago. I'd been in my messy nappy all day. No change there. However, I started to feel a soreness on one particularly part of my butt. It was right up towards the small of my back and near the middle. I went and cleaned up, but the soreness remained. 
Now, the problem with that area is that it is really difficult to see. I spent a while bending over and squatting in different positions, pulling my cheeks apart and trying to take a photograph to show me what was happening.
The results were rather inconclusive. There's no obvious sign that anything is wrong and the soreness has disappeared. As far as I can tell the skin back there is the same colour it always has been. It's not easy to tell though, it's not a place I look at much!
Something that I've thought about whilst writing this is another change that really started before the challenge even begun.
Long term subscribers may be aware that I'm polyamorous and in a four person polycule with my wife, my girlfriend and a metamour (both my wife and girlfriend's girlfriend.) For a long time I was my girlfriend's Daddy. Whenever she was over, I would change her, look after her, etc...
The problem was... I simply am not very good at it. I worry too much, I find it hard to keep up a care giving persona. Frankly, I'm not a Big, and trying to be one was stressing both myself and my girlfriend out. It was upsetting to me, to learn that I couldn't be a Daddy for my girlfriend. I wanted to be, mostly because she wanted me to be. I felt she deserved it, but it led to me feeling like I was letting her down all the time when I couldn't be the Daddy she needed.
Fortunately for me, my girlfriend is a switch and would seem to be more comfortable as a Big than a Little. We've always had a relationship where the roles were quite fluid, but now instead of me being "Dada", I find myself calling her "Mama."
I don't know how far I want to take it. I don't think I'd be a good "all the time" Little (though I see myself more as a Middle). There are too many adult things I enjoy too much, the idea of being kept as a complete baby can be hot for a short time, but I think I would soon go mad if that was all I had, but it's interesting. Being the Little is easy in a way that being a Big definitely wasn't.
My girlfriend will be visiting in a couple of months and we'll be able to explore more together... though, we may be too tired from all the DIY we have planned to do much of anything!
It'll be interesting to see what happens.
Here's the stats for the last couple of weeks and overall:
Week 7:
Number of nappies: 11
Messy nappies: 6
Toilet uses: 0
Times “overexcited” in nappy: 0
Number of leaks: 1
Week 6:
Number of nappies: 13
Messy nappies: 6
Toilet uses: 0
Times “overexcited” in nappy: 2
Number of leaks: 0
Overall:
Number of nappies: 87
Messy nappies: 43
Toilet uses: 1
Times “overexcited” in nappy: 15
Number of leaks: 3