hip extensors, lordosis, and bed work

Apparently I've been using pillows wrong, fairly often. I have good data on this, because I remember what I was doing consistently from 2001 to 2006, and then from 2007 when I started operating out of a sleeping bag. Basically I stopped hugging a pillow with my abs, and that moved a lot of passive tension away from my hip extensors to my hip flexors.

Compounded with increased seated work, and reduced walking and running, and furthermore by the complication of starting to date around 2007 which normalised new objects of hugging. 

After doing some crunches and related work today, I put a bit more focus on active manipulation of hip extensors. Hopefully this gets worked out over time and fixes any lordosis that has developed.