Please help....cough

Rebecca • I live in the uk....twins due in a few weeks 😊
I've had a cough for about 5-6 weeks naw it's not all the time anymore but sometimes like tonight I just fought and start heaving and tonight I was suddenly sick with it and then had a nose bleed (I've never ever had a nosebleed before) I have been to the doctor and she said my chest was fine (which I could have told her) and she couldn't see anything in my throat and to come back if it didn't go in a couple of weeks....anyone else experienced something similar? Thanks