Hi,since you have twin babies there are chances that you might have an early lactation failure.However ,if it is sudden,get a
TSH test done...its a blood test for hypothyroidism,also if you have family history of hypothyroidism...all the more you need to het one done.
Another advice is put tje babies to breast...that is the best stimulation for milk secretion, avoid using breast pump.
You can continue with Cap Lactare and Galact granules.