Identical twins, momo twins?

Suez

So I went in for an ultrasound scan again (6+5 weeks) hoping to see a heartbeat but end up seeing 2 heartbeats and was told that I'm gonna have identical twins. I'm freaking out now as one twin is smaller than the other. My thoughts are running wild now if the smaller twin can survive? If there is a twin to twin transfusion syndrome? If this is a momo twin? Etc.... this complicates the pregnancy so much.

I just wanted a normal pregnancy but keep getting surprises 😭

Any success stories withe identical twins pregnancy that has discrepancy in twin sizes?