Hay, mama, nakaka-alala talaga yan lalo na pag umiiyak ang bata habang nag-didumi. Since ang pedia mo na ang nag-advise ng purga at nag-mention ng concerns about weight loss at appetite, I'd really suggest going back to your daughter's doctor to ask specifically about the safest type and dosage for her age, kasi iba-iba talaga ang tolerance ng 1-year-olds at depende rin sa actual cause ng constipation niya. One of my mum friends had a similar situation and ang pagsusuggest ng doctor ay mas maraming fluids at slight diet adjustment muna before jumping to purga, so ask din kung yan ang option. Fingers crossed it's just a phase, pero follow up talaga with your pedia about the shaking and crying, that needs proper monitoring. Hugs, mommy!