Doctor 3 Months Back I Delivered A Boy Baby..when I

Doctor 3 months back I delivered a boy baby..when I got pregnant I was 56 kg after delivery when I was discharged I was 66 now my weight is 75 unable to bare my weight..after delivery I dnt have a drop of milk they gave me Lactrine tablet n after that had some milk secretion but my baby refused to take Breast feed as he was in nicu for 12 days as he was a 32 week baby..approached many lactation consultant to help me in this but I failed..till now I'm taking galact granules and domtal tablet for milk secretion but he is not drinking and there is no sufficient milk..am I gaining weight coz of these medicines or what..how to feed my baby and mainly how to loose my weight it takes me to a depressive state..Please help me in this..I want to breastfeed and at the same time loose my weight..I went through c section.....