HJ - take a deeeeeeeeeeeep breath sweety. u are a fantastic mum and NEVER think any other way ok! Bianca will just be ajusting to the formula. Are you worried coz she hasnt had a poo in a while? They say babies can go up to 10 days without a poo! U will find that FF bubs dont poo quite as much and when they do it is about firmer than BF bubs poo. What bottles are u using? is it possible she is swallowing too much air when sshe drinks.. hence giving her wind. How much are u offering her? Is she co sleeping with u and DH? Babies cry and scream hun, its the only way they can say "mummy help me". If it goes on tonight and u are losing the plot, tomorrow book her in to see the doctor. She might have reflux (which is common) or she might be colic (also very common). I dont think the issue is you hun.. your bubbi isnt happy and there WILL be a reason why and you WILL fix it just give yourself time.
Im here WHENEVER you need to talk xoxoxoxoxo have a good night sweety