Hiya, yeah I've had the odd tweak too - my lower back gets really sore and I have to carry a cushion everywhere.
I've got similar leg problems, and then swelling started 2 weeks ago - I'm at 28 weeks now. The only thing I can do for this is lots of rest as I'm finding that I need to take it easy a lot more.
Aquanatal helps, although sometimes I find even that too much as the physio jumps about a lot - swimming is good, but my breathing is all different - walking is great, although hills kill me.
Also, the great thing about aquanatal is that a midwife and physio run the class, who are great with extra help and advice and tips for getting the care you need.
Normally I'm pretty fit and do a lot of hill walking, so I know it's pregnancy that makes your body feel odd - but it's a great excuse to put my feet up and not do as much.
Also, I find sleeping on my left is the best, with one of those mothercare wedge pillow supporting my baby belly and really helps with the straining feeling- and I sometimes have a pillow between my legs. The only thing is my feet and hands are often numb in the morning, but my doc says this is totally normal.
And I keep telling myself it's only another 3 month, and then the baby is here and the pain will be all worth it.
I feel quite lucky that I haven't had it worse, one of the girls in a local class was wheelchair bound for the last couple of months and ended up having an 11 pounder by c-section.Jeez