Do I have gastric reflux? Tonight I was going to bed so I climb into bed and once I am lieing down I felt?

nauseous. I have asthma but it seems that I have it pretty bad some nights and the only trigger I could think of is dusty sheets. I just read that nocturnal asthma could be gastric reflux. I throw up alot (not an eating disorder my body just rejects junk food.) And I have been since I was little bitty like we're talking infant. Can you please tell something with out saying "go see your doctor" OH and I'm not pregnant no chance what so ever. 13 yrs old. If that helps