Littlehuman, I agree, she sounds very overtired and needs more sleep as you definitely do! Poor thing, how are you managing to cope??!
Have you ruled out any physcial causes, e.g., reflux, ear infection, cow's milk protein intolerance? All of these can contribute to poor sleep.
I have a baby who until recently slept very little. My first DD (now 3 and a fab sleeper) was also terrible as a baby. With both of them we only made any progress when we taught them to sleep in their cots as opposed to on the move (they were both movement junkies like your baby and couldn't drop off in a stationary environment).
With both, this has involved putting them in their cot and staying with them until they went to sleep - PUPD didn't work for either of mine, just got them more agitated. It took a very very long time the first time with my DD, around 2 1/2 hours I seem to remember. It didn't take quite so long with DS. With both of them there was quite a bit of crying. I just patted them on the bum to let them know I was there. If they got really upset I did pick them up. With DS, I sometimes jiggle him in his sleeping bag in his cot so he thinks he's moving IYSWIM. I think the key thing is getting them to fall to sleep in their cots, one way or another. No dummies or anything like that because as soon as they fall out, they'll be awake.
As I say, proper PUPD did not work with either of mine, nor did shush pat calm them down enough to actually sleep really. With both I'm afraid to say that they've had to whinge themselves to the point of exhaustion the initial few times.
This might not be for you - some people are unhappy with anything that involves crying, but for us, it felt like the only solution and I am very glad we did it because I am a much better, calmer parent with more sleep!
I do hope you find a solution soon.