GD & Metformin - side effects

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Started Metformin yesterday due to diet change not making enough difference with my glucose levels. Dr said some side effects like upset tummy etc.

The first side effect kicked in this afternoon, could not get off the toilet! Feel like I lost 10lb in weight since 😳

Since then I’ve been cramping... not sure if it’s for more toilet time or BH

30+6weeks so I’m hoping it hasn’t triggered pre term!