Prescribed 1000mg metformin to help with pcos. Took 500mg for a week, mild nausea but felt generally okay as the week went on. Increased to 1000mg a couple of days ago and feel horrendous - severe nausea and headaches. Am taking 500 with breakfast and the other 500 with dinner. I am still taking myo inositol alongside this which GP said was okay to do. Will the intense nausea subside and should I persist or drop back down to 500 for a bit longer? Also how long was it until you started to see the positive effects?🙏