"had this in since nov 2014. period disappeared for ~3 mo. &amp; then it switched back &amp; forth between every 2 weeks to every 2 mo. i&#039;ve never been really good at thinking about when to expect it, so, this was more or less business-as-usual. physically: yes, i did gain weight, but this just motivated to me to dedicate time to exercise. not the worst outcome. emotionally: i didn&#039;t notice much of a change for the 1st yr, but then the 2nd yr i felt emotionally out of control. i&#039;ve always been lactose-intolerant but never fully committed to a dairy-free diet. i finally did in that yr as i was reading papers that eating dairy can actually worsen symptoms of depression. avoiding dairy all together fixed the issues &amp; have been happy ever since!"