No one can tell you exactly what is going on without further testing. This link shows that your level is rather low: https://www.questdiagnostics.com/testcenter/BUOrderInfo.action?tc=18358P&labCode=SJC and also states that lowered concentrations are associated with pancreatitis, rheumatoid arthritis, and multiple myeloma. None of these can be ruled in or out without further examination and testing.