Oh my gosh. I apologise for not reading the whole thread though I've tried to find your responses. I'm accruals in hospital myself, having had a brain tumour removed on Thursday. I also have a five year old and five week old baby so it's been hard.
I think if I've read right your darling daughter has had an MRI so you're awaiting results? This is shit. There's no getting around it. I think I can probably understand a bit of the terror you've been going through since that first scan. I'm so sorry you're going through it.
The only thing that has kept me going is trying (though utterly impossible often) is to focus on one thing at a time - might be one moment, one hour, one day, one scan. Things seem overwhelming, understandably, but our brains cannot cope with the future and it's terrifying what ifs rolling out in our minds. Try and narrow down and focus on each day, getting through each scary appointment. And remember, for every terrifying outcome there's a better possibility, too. There's nothing to say that one is more likely over the other, yet. And if it is something more sinister they've caught it early. I'm sure when I was first diagnosed they said 95% of tumours (if it is that) are benign.
I've found MRI results to vary in when they come, I think you asked that. Sometimes days, sometimes a week. I had one that was sadly inconclusive, hence having to have the tumour removed (I don't say this to scare you but so you know it's a possibility as I was blindsided by it).
Your daughter will be under the very best experts and receive amazing care. Yes, your future, like mine, isn't going to look as you'd envisaged in the coming weeks or months possibly, but you will get through this. Take strength, when you can, from the love and support of family and friends, as well as hundreds of strangers here.
Happy to answer any questions if I can, based on my experience.