HELP so much blood

Annah • happily married✨💍 + ttc

So I've been on my period for over a month now and my doctor put me on one birth control to help stop it while I get to a specialist. Well it didn't stop after two weeks and the side effects were really bad so I went to the ER. They gave me a shot for pain and a different two week birth control to switch to and told me to get with my gyn. I got an appointment for feb 9 but everything is so much worse. I'm bleeding through pads like crazy and I use overnight ones. I have bad cramps and I'm just tired of bleeding so much. Should I go back to the ER? I feel like this isn't normal. I feel dizzy some but only when I'm laying down and rolling over in bed and the past two doctors have said my blood levels were normal. And every test is always "normal". How is this normal?