Awefully Elevated Bilirubin and alkaline phosphatase

After travel back from Portland, OR, I noticed that I have itchy skin and dark yellow urine. I didn't pay much attention on it until a monthly later I had blood test indicating high bilirubin and ALP. I did full liver related test, here is my result:

Bilirubin, Total                    7.2 mg/dL                                      0.1-1.4
Bilirubin, Direct                    4.8 mg/dL                                     0.00-0.4
Alkaline Phosphatase     173 IU/L CS                                     30-130

other Normal chems
Glucose                        92 mg/dL                                               65-99
BUN                             12mg/dL                                                8-25
Creatinine                     0.6mg/dL                                               0.6-1.4
Total Protein                 6.7  g/dL                                                6-8.5
Albumin                       4.1  g/dL                                                3.5-5
ALT (SGPT)                   45  IU/L                                                0-52
AST (SGOT)                  40 IU/L                                                 0-48
Hepatitis A Total AB      Reactive

Also I have Hepatitis A active, why AST and ALT are not that high? I did ultra-sound on liver, gallbladder, panceas,biliary tree, and spleen. They didn't see any dilatation. Everything looks fine.

Why my bilirubin and ALP so high? Is this all caused by Hepatitus (hepatitis) A or some other potential problem, like cancer?

Thanks in advance!