Worried mom 😒😭

My 6 mo old baby was pulled up by her arm by her little brother and cried so bad. I then took her to see her doctor who examined her and ordered X-rays that came back normal. Doctor said might be sprained and will take a few days to get better. It has been four days now and still has pain when picked up by armpit or when I try to cross her arm. Contacted doctor and said if I want her to be evaluated she’ll refer me to an orthopedic doctor. And I’m worried it could be dislocated or something else or could it be just a really bad sprain? Please no negative comments.