Dear @Panos,
Welcome to this community and thanks for sharing your story and experiences.
I’m a little confused about your mention of an RNA test to diagnose Hep B. Generally the first test for suspecting Hep B is a panel of tests which includes HBsAg, HBcAb (total and IgM), and anti-HBs. Did you get this done? It’s from these tests that you know that it comes from this recent incident. A HBV DNA test is done afterwards to confirm and is used (in combination with other tests) to judge if you need further treatment. Hep C (a different disease) is confirmed with an RNA test, so that is why it’s important to confirm which one you have tested positive for.
If you were recently exposed to Hep B, then your chances of clearing the virus are very high (80-90% as your doctor has said). The immune cells of adults can respond much better than babies and children (who clear the virus only 5-10%). The clearance can take months to happen as @Joan_Block mentions.
Different people will experience the clearance differently. Strong symptoms can indicate a good immune response, but it is not necessary when clearing the virus.
We have a thread talking about people trying to tell their families here - How do i talk to my family about hepb. It may be helpful to read this and maybe contribute to the conversation there.
I would recommend staying under clinical monitoring during this time and trying to see a liver specialist, preferably one that specialises in Hep B. There can be complications during this time that a GP may not necessarily know about.
Hope this advice helps.
Thomas