I have a very strong, chemical-like odor coming from my vagina. This started several days ago, and 2 days ago I got my period, which is almost 2 weeks early. The odor is certainly unpleasant-somewhat toxic, maybe like photo developing solution. Very strong, though a little less so since starting my period...Approx. 6 months ago, my cycle became even more unpredictable than usual. My cycles range from 14 days to 30 days, though one cycle was upwards of 40 days. My periods are the same, sometimes lasting 3 days, some 12 days, some very heavy, some nothing more than brown discharge. I haven't had sex in months, and I'm 40 years old. My last visit with my OBGYN was almost a year ago, and we discussed menapause. At that time, she felt certain that my less severe erratic cycles were not a sign of menapause. May my current symptoms be pointing towards something along the lines of cancer?