Help if at all possible :)

Hi, I am a 23 year old female, I have been in and out of the hospital since July with abdominal problems but whilst there they also found some ?Nerve Sheath Tumours on my T7 & T8 Vertebrae nerves. I have been for an MRI and there was an MDT meeting last week regarding it but I am yet to hear. I am quite worried about it, can anyone give any advice on what may happen? I was told months ago they would probably do a biopsy but I am still waiting? I am quite worried it is something more sinister but is it likely at my age as nothing seems to be happening quickly??