How to get morning sickness medication

Leah
So I'm gonna ring the doctors tomorrow coz I have been really sick for the whole 11 weeks now but my doctors are really bad. they make you ring on that morning for an appointment which normally are all gone within the first 5 minutes of trying to get through and I need something now. I'm struggling keeping anything down. How can I get some medication? I was gonna ask a doctor to ring me back if appointments were all gone but that's only thing I can think of x