I had a c section on oct 7. I m discharged from hospital on oct 10. At night when I was feeding the kid, I felt sharp pain on upper left arm and it increases when I try to lay down. I have left shoulder pain too. The pain is unbearable at night and when I try to lay down. X ray report is okay and there is no fracture. Currently doc prescribed me Mobizox and Pregabid NT. The pain supressed once I took medicine but again active once medicine effect gone. Please suggest whom to consult. I m a lactating mother.