I am 32 and in August of 2006 I got the shot. Well one month later I had a period for 4 months non stop. Since December I have had brown spotting or very light period since. It could last 2 days or 5 days and come when ever it wants. My friend said I might be starting menopause. I do have hot flashes at times and night sweats. Difficulty sleeping and very moody. Can anyone help me with this? Is this normal after the shot or is this something more serious?