Hello,
Well first they asked me to retake the HBs Ag test, since it only said: hepatitis B, I called the DR and they told me that that is what they took (the antigen test) so they just resent the results.
She forwarded all the results and it took like 10 days for them to reply saying the doctors requested for me to repeat the ECG graph and get a cardiologist evaluation, no further details were provided.
I took it again and went to the specialist and everything was fine, sent them and it took like 2 weeks for them to say they were forwarding the results to the medical center (I believe my officer was on vacations), then it took 9 days to get medical clearance.
I saw the e-mails when I woke up (I'm in America), replied and they sent me the offer right away I believe it was around 6pm Qatar time. I still don't receive my visa.
So just be patient, it took a long time for me but at the end it's worth it.