Waited hours to be give a cough mixture script

Although my lungs are clear on xray, the doctor probably thinks I'm lying when I told her that my chest feels so tight, I requested a nebulizer and a prescription for breathing meds but she still refused...I informed her I'm having difficulty breathing and dry cough, I can't sleep at night can she give me something to get me comfortable, she refused and said she'll give me a cough mixture only...I left the hospital going to another one to get something to get me comfortable at night because I can't sleep with this tight chest...

I arrived at 11:35 and left at 15:15

Just to be told that they'll give me a prescription for a couhh mixture after I've asked her for nebulizer and that I still feel tight chested, I can't sleep at night...

Ive been having respiratory issues from 2016 this is the first doctor to tell me that there is nothing wrong with me after I informed her I STILL FEEL A TIGHT CHEST, HEADACHES AND ANNOYING DRY COUGH...

ANOTHER SLEEPLESS NIGHT, HOW DO U LIKE THAT???