Yes, fatigue is a symptom. It is most likely caused by adrenal exhaustion, especially if thyroid function is low. One thing that saved me was a product called Nervous Fatigue Formula, made by Nature's Sunshine Products. It helps you really get good sleep while you are sleeping, and feel more energized when you wake up. Because what happens is your adrenal gland gets worn out, and it actually can't keep you asleep (it takes energy to sleep!) This is a pretty common problem, not just for women with PCOS, but especially for us. There are 2 types of Nervous Fatigue - a regular and a concentrated - the concentrated is like taking 5 of the regular, so if you don't want to take a lot of pills (you are supposed to take about 9 or 10 of the regular a day) get the concentrated, then just take 2 a day.
One thing to know about chinese herbs is that they work slowly - because they are literally healing your body, so it might take some time for it to REALLY help - I noticed a difference after about a week or 2.
I also take other herbs for PCOS - contact her (or me) if you are interested.
Here is the information - hope it helps!!
http://www.mynsp.com/naherbs/product...?stockNum=1884
(FYI - become a member with Nature's Sunshine - it is worth it! Look at the difference between member cost and non-member cost)