Lower back soreness for two weeks - should I request a bone scan?

[bejuce]

I had my period return unexpectedly on the 1st, and with it I
got a sore lower back (between the spine and the right side of my back above my hips). I took a couple of Motrin and that seemed
to do the trick, but the sore feeling has never really gone away for
good, although it seemed to get better. Last night I felt it a little more, and being the 19th, I'm wondering if it's not the time
to get a bone scan. I'd hate to get a scan every time I feel something, but this has been bugging me, albeit more on the emotional/mental side of things rather than the physical one.

To those of you who've had bone mets, what were the symptoms? From
what i've read online, bone pain seems to be deep and excrutiating, and I'm certainly not feeling that, but on the other hand I don't want to wait for
pain to get worse before checking it out.

So, what to do? How do we know to ignore lower back soreness/pain that may be due to age, Tamoxifen, carrying kids around and to monitor bone pain due to possible mets more closely? Would the pain be any different?

FYI, the soreness/pain I've been feeling is very localized and I'm pain free elsewhere.

Thanks!!!