So happy to hear from you again! Don't take this the wrong way but I was hoping that you had been in the hospital.
Those IV treatments really can make all the difference. It sounds like you are being well looked after which is fantastic! HG will typically ease off around week 20 but everyone is different. Yours could ease off earlier while I still have bad days with mine even though I'm now at week 26.
It's great that you got to have a scan and hear the heartbeat. I found that to be very reassuring and comforting when I was in the hospital.
You take care hun and keep in touch.