Metformin update -pcos

I am currently 12 days in on metformin 500mg. Extremely bloated today out of all days today is the worst and tomorrow is the day I up to 1000mg I am petrified. I bought gasx today just to deal with the discomfort bc I couldn't take it anymore. Is anyone currently going through the same thing???? I am trying not to eat shitty food or carbs but then I am also afraid to eat salad bc of the gas it may give me as well. I need advice.... Help!