Can you share what your platelet count and factor viii level is? Most of the time this is autoimmune but could be a bone marrow suppression. As you probably know, you should stay away from aspirin and antiinflammatory drugs ( NSAIDS) as they interfere with platelet function and can cause bleeding. Are you having bleeding or bruising or petechiae( tiny red or purple dots on skin)? Maybe your new blood tests will shed light on this. Do you see a hematologist?