Miscarriage help

My friend just found out she was pregnant about 1 1/2 weeks ago and 2 days ago she went to the hospital because she was spotting and her levels went down from 120 to 100.

She hasn’t bled anymore since that night, she still has all her symptoms, the doctor wouldn’t let her see the ultrasound and just told her they couldn’t find anything. She was about 4 ish weeks along.

If you’ve been through a miscarriage when did your bleeding start and when did you lose symptoms. Idk something just feels off to me about this.