How do i know if i have a problem with iron within body ?

Blood test: Your doctor can order a serum iron test. https://medlineplus.gov/ency/article/003488.htm Iron test checks : amt if iron bound to transferrin in serum. Amt of iron needed to bind to all of the transferrin =total iron-binding capacity (TIBC). % of transferrin with iron bound to them= transferrin saturation. REF: http://www.webmd.com/a-to-z-guides/iron-fe#1

Blood test: This could be answered with a simple blood test.