12 Yo Female Hist Eating Issues And Soft Talker Shy

12 yo female hist eating issues and soft talker shy last 2 mo very weak hardly able to walk...feet turning as she tries to walk...hard to eat cannot do stairs getting worse has mri and tests but being told they have no results she was in hospital for 4 weeks know no more than b4 now noticed top half of body warm bottom is noticeably colder