Question about your meditation

I just had a sit where I calmed some sneaky tension in my lower abdomen region, something that's happened before a couple times. I think from the times when I unraveled it to the next time, I had been insensitive to the region and allowed it to accumulate.

So my question is, can you tell us what your experience has been with sensations in that area during meditation and off cushion as well?

I have limited flexibility in my hips, and I'm wondering if this contributes to tension there.

By sneaky I mean very subtle and easy to slip away. This is a problem when doing body awareness, what I am doing right now, since there are other parts of the body to be aware of, taking everything into account tends to lose sensitivity in this particular zone easily.