Talked to the vet, and she said it was ok if Trink followed me around the house, and that she can go out for her afternoon sunbath. So I am feeling better.

I am stocked up with treats so that we can work on targeting and give/take. I've been trying to get her to retrieve things, but she is much happier to chew on whatever I use as a target than give it to me. So, I have things to work on while she can't move.
Oh, and just some tidbits that I have learned from this. Pill pockets make giving medicine much easier, if your dog likes them. (My vet gave me some to try before I went and bought them.) Head bobbing while walking can be a sign of lameness (depending on extent, normal gait, etc.). And, if you feel that something is just "off", sometimes you're right. I just wish that I had gone in earlier about this.
Finally... I'm wondering if this is why Trink suddenly started freezing at the daycare parking lot? She used to love to go, but the last month or so, when I would take her there she'd be fine in the parking lot until we started going to the stairs to the building, at which point she'd just stop and try to get back in the car. I'm wondering if it's because her leg hurt going up the steps? I thought that she was just being nervous because of the earlier dog attack, but now I wonder if it was pain all this time that made her act differently. It would explain a lot.