Lordosis/Lordotic spine?

[nscrbug]

I have a bit of a "swayed back" due to a spinal condition called spondylolisthesis, which is a vertebral slippage. Mine is a 50% slippage (classified as a Grade 2) at my L5/S1 vertebra, and it also causes me to walk a little "funny" (aka - waddle). A simple lumbar xray confirmed this for me, although I have also had 2 MRI's. My low back gets stiff and tight all the time, especially after bouts of inactivity such as sitting for more than an hour at a time...or sleeping overnight.

Perhaps seeing a reputable chiro who will do a simple xray (most will offer an xray with a new-patient consultation) can give you a better idea of what you might be dealing with.

[OakLeaf]

I don't agree with everything on this site (not that I have any expertise to really allow me to agree or disagree ) but she does talk a lot about swayback and what to do about it, and in general I think she has a lot of good ideas:

http://www.drbookspan.com/fitfix-index.html

[Chicken Little]

I'd see an orthopedist or a neuro/back surgeon for an eval. You need a set of X-rays and maybe and MRI to see what's up. Mostly I worry about what's ahead of you, say when you're 70 years old. Take your time, find a good doc, and go from there. It maybe just a normal variation, but you just don't want it to worsen.

[KnottedYet]

I'd suggest a PT or pilates instructor to teach you good posture.

From the pictures you posted, you have the typical "Betty Boop" locked-knee girlie posture. Yeah, it takes some work to train your body to unlock the knees, pull the tailbone down, and hold the belly flat; but women do it every day.