I had a high impact MVA and sustained a grade IV laceration of my spleen. On outpatient Dr. order CT scan and then discharged me but spleen was worse

Keeping your spleen is the new thing today. A grade IV is very dangerous and following my out Patient CT scan it was discovered that my spleen had worsened I was told not to pi/u anything over 20 pounds discharged and told if I had any problems to call. I of course did not realize this. I am also a clinical study and am suppose to be studied but have ever been studied, In addition my abstract records from the hospital do not have all of my complaintsand even have information that is no correct. What can iI do.?