Newborn baby crying. Suggest what to do?

Hi, I delivered twin babies on dec 14 2017. Twin 1 is a female child and twin 2 is a male child. Initially birth weight of female was 2.6 and male was 2.1. Now, its 8 weeks after delivery. During the starting weeks after delivery, the girl was getting feed properly by her own but the boy was not. After one month of struggle now he is getting fed properly. Its not possible to feed both the babies at the same time. So, if both the babies were hungry, I used to feed the girl first depending upon the last feeding time. In the meanwhile, my family used to take him on arms and used to swing. For any reason he was crying, the same process is being repeated. Now after getting feed proerly also  he is demanding to be in arms 24 hours. Even after sleeping, if I put him down on bed, he is getting up and crying untill again we take him in arms and swing. As I has CS delivery, I am unable to carry him all the time and swing. So this process is becoming very hectic. Please suggest what to do ?