Hi I’ve been on metformin for about 2 months I did the first 8 weeks 500mg once a day the beginning was okay just a lot of diarrhea and stomach pains and the first two days the headaches were like pow! Just about a little under two weeks ago they upped my dose to two a day and the headaches a horrible even if I miss a day of pills or just take one the headaches and the burping and bloating has been a nightmare. Has anyone else experienced this? And does it go away? Does it get better and is it normal my headaches make me want to karate chop someone in the throat. Also any luck getting pregnant on metformin after upping the dosage?