Everything was fine for me on WB until I upped my dose
- then I had mood swings and missed
periods. After 3 months without a period, they found my prolactin (hormone that deals in lactation and suppression of periods amongst other things) levels were twice the far-end-of-normal limit. My doc had me go off the meds for a few weeks to see if they were the problem, or something more serious - after those few weeks, the level thankfully went back to normal (but still no period - yet).