27 weeks possible TAPS

Eva
Im pregnant with mo/di twins. After finding out at 20 weeks I was having twins I have been having an ultrasound every two weeks to check blood flow and growth. Today they noticed abnormal flow to baby a and I was immediately taken back to US to do BPP , then a NST and baby a only scored 6/10 so they gave me the first of two steroid shots and I go back tomorrow for the second and another NST. I'm curious to see if anyone else has been through this and what the outcome was. I'm really nervous!!