Help, I feel stupid to keep going back to the doctors

My little girl was suspected to have cmpa so was put in nutramigen for a trial. She started projectile vomiting so was then given some intact gaviscon. She was refusing to drink and got worse and was only taking 4 oz in a whole day so we ended up taking her to a+e as the doctors was shut. She was then prescribed aptimal pepti junior and she’s like a changed baby. She’s drinking 4oz bottles and there is no screaming during feeds. She’s always been a baby that struggled to move her bowels so was changed from gaviscon to omeprezole as she was going back constipated. To get to my point she still hasn’t had a solid poo being on the new formula and it’s gone from yellow to green. I feel stupid going back to the doctors to say she’s still not having solid poos 😂😩 To note she’s not had a solid poo since she was born and she’s 12 weeks old. But she’s not screaming like she was before she was put on the milk so I don’t know what to do or if there is anything even wrong with her