EXPLAINER: Lab results and their interpretation

Hello dear friends, I am new to this group and I was diagnosed by accident last year on 8-2023 and I was positive in chronic form.
I don’t know how many years I have had this disease. So my questions are:
Can I take hepatitis B medication based on the hbsag marker?

How can I know how many years I have had this disease?

what is the factor that changed the amount of hbs ag in a significant way ?

Thank you for your understanding

Test 1

Test 2

There is a big change in the amount of HBS.

37,50 Ul/ml towards 3740 Ul/ml.