help unsure what to make of hgc levels

hi never posted a question before online but am really worried.
have a doctors appt tomorrow for  a scan as they have said i may have a molar pregnancy. basically had some spotting went to doctors sent me for an early scan as have miscarried previously scan only showed sac at 5 weeks so was week early than thought nurse said would be to early to see anything else to come back in two weeks also went for blood test came away feeling fine.
next day got a call to say they felt my hormone levels were high at 4400? (this sounded ok to me not sure what high is) and they wanted me to come in immediatly to a&e, went up they checked me over no bleeding since the spotting at start and no pain sent me home nothing to worry about, went back for blood test next morning levels still high but not increased much, I then received call after call from doctor as you can imagine i was was getting very anxious and upset for them then to tell me they needed me in again urgently as they thought I may be having a molar pregnancy. well appt due tomorrow morning feel absolutly sick with worry and nerves at whats to come please has anyone had simular senarios and what were the outcomes? thanks lu
by the way sorry for length