Don't stress! Your DD sounds very much like my DS was (oh, and I worried too!). He started bum shuffling at 12 months, but until then didn't move much at all. He could roll tummy to back, but didn't very often, and never really rolled back to tummy. He didn't start pulling himself to standing until well after 12 months. At his 12 month MCHN check up we were referrd to a paed physio. She gave us a few tips, but basically said he should be fine, he'll just do it in his own time. And what do you know, he did! By 16 months he was walking well on his own, and it didn't take him long to learn to walk once he started. He's now 18.5 months, and walking, running, climbing all over the place. One thing that really helped with getting him to walk was when we got one of those block trolleys - he loved walking behind it and pushing it around.

If you've already seen a physio and a chiro, there's probably not a lot more you can do at this stage I reckon. Just encourge her to walk when she's ready, with you holding her hands or her pushing something, and hopefully she'll be off in no time!