I am 41 years old, and for a couple of months now my periods have been all different. One month 4 days, which is normal for me, first day is usually very heavy and uncomfortable, then lighter and lighter days 2 and 3 then day 4 just clean out, then done...then I won't have my next one for like 5 weeks. they seem to be getting farther apart. And now this one, which I may add has been going for 8 days now...not normal at all for me..I have had light spotting, brown color, and 6 days, then bleeding now normal coloring for 2 days...Any ideas what is going on? Am I pre-menopausal?