I just did a Google search for low back pain and premenopause and found this site. I'll be 45 in 2 weeks and have NEVER had low back pain - but it started 4 days ago (with my very irregular period) and now I am uncomfortable standing, sitting, walking, lying down etc.... My other problem is that I get VERY depressed just before my period - which I never used to do. Last summer I went 8 weeks with no period - I was actually beginning to think I was pregnant - but that's impossible as my husband was "fixed"! Just the thought of that was enough to depress me (I already have 2 great kids). Anyway, nice to find a spot to where I can see I'm not suffering alone! Men have no idea what we go through!