I started on May 15, 2018 at 600 mg a day (300 mg tab in am and another 300 mg in pm) and stayed on this lower starting dose due to my smaller body size, for the first 18 days. I also tried just one tab (300 mg) a day for a couple days to find out if the 600 mg was too much but my mood got worse. Since I wasn’t noticing improvement, I increased my dose to 3 times a day (900 mg a day) and began having sudden headaches in the afternoon and/or evening. I will hang on for another three weeks at 2-3 times a day (600 -900 mg a day), depending on the headache side effect hopefully going away eventually. I am reaching out to anyone for any thoughts and opinion on this. Please share any experience you may have.