Hi all. Not sure how unusual this is, but I guess I'll know by the response. 4 days ago I had to have a selective reduction in a dCDA twin pregnancy. The twin in question was very sick with a rare structural condition. The consultant told us she was fairly certain it would not survive, but we didn't feel we could leave it there any longer due to the risks to the healthy twin (miscarriage, prem labour etc). We were devastated but didn't feel we had a choice. 
However, now I'm terrified of losing the other twin. Told 5 percent or so risk of miscarriage (procedure done at 13 weeks but the twin was measuring only 11.5 or so weeks anyway) and I'm on pins.
it's also frustrating that there's nothing at all we can do! I'm having to continue hiding the pregnancy even though I'm now 14 weeks, in case the worst happens. 
Anyone come through the other side of anything similar?