Talk to Gynecologist on Weightloss,too Light Menses

Aoa,i m 30yr,mri2 betiyan hai,2 beti ki birth k bad mje bwasir hogya tha,blood aata tha,tb mra weight tezi se kam hogya,me kafi week hogai hun, ab bwasir nai hai,lakin mera weight gain bilkul nai horha saal hogya, menses b boht lite hogye hain 1 din b theek se nai horahe pehle 3 days theek se hotay thay phr4 days spotting hoti thi ,diet b achi hai meri, telme kya test krwana chaiye ???plzzz suggest