Help please!! First pregnancy

Meghan • Baby girl April 2020 🍼💕🎀🧸

So I am 4weeks today and just started not being able to hold anything but water down!! I’ve lost 5lbs already and I’m so tired and dizzy!! It doesn’t help that I also have a cold and can’t take anything for it 😭 but I haven’t had my first doctors appointment either. Should I try to get in sooner? I’m so dizzy and sick I just want to curl up and cry and sleep!!! Please help!! What does anyone do for nausea and vomiting??