First pregnancy, seeking help and advice

Jonica
I'm about 7 1/2 weeks along and for the past 1-2 weeks my morning sickness has gotten the best of me. While I haven't actually thrown up (only coughing and heaving awful acidic bile) my nausea has made it some days impossible to move. Not to mention painful bryond belief. I cant get out of bed, walk, eat sometimes I can't even sit or lay down. I don't know what to do. My mom had extremely bad morning sickness when she was pregnant and told me to expect it. But this feels like it has gotten out of hand. I have an OB appointment May 2 but I don't know if I should or even can wait that long to say something and do something about it. Should I stick it out and wait until my appointment ir try getting in to my primary doctor, urgent care or even ER with how bad it is? Please help. It's painful and makes me nervous.