Kitten foot injured. input?

Kitten's 8 weeks old, and is very playful. She likes to sit on my room windowsill when i'm gone. and when i come back she jumps off usually onto my bed then down to the floor. But on saturday she jumped off the window sill straight onto the floor from the other side. she's done this before without injury and seemed fine. But this time she seems to have injured her left front paw. when she landed she held up her paw and cried loudly and hobbled off to the corner. when i took her to the vet, the doc seems to think she's just stretched or sprang it. says it's very unlikely she actually broke it. gave her pain meds and said he wanted to see how she does over the weekend and to bring her back monday. that was saturday though and it occurred to me that even if it were just a sprang it'd take more than a mere day and a half to show significant improvement. so i wanted to wait a few more days. she gets around fine just a little slower. she doesn't walk on it at all. she can kind of put weight on it now, which she wasn't able to at all before. if you touch her left paw and bend it in, she doesn't fuss at all. but if you extend it straight, it begins to hurt her as it becomes almost fully straight. anyone have any input on this? and be serious please, i am a first time cat owner so talking to me like i'm an idiot is only going to irritate me. there's no point in doing that as it doesn't help the situation at all. we are all out of highschool after senior year so acting like a child is only going to make you look stupid. otherwise all mature helpful comments and answers are welcome. thanks for your time.