Short of breath and reduced lung capacity

I have a history of bad allergic rhinitis. No trouble getting air in and out but I've been blowing low scores (58%) on lung capacity tests. Each time I go back to the allergist/asthma doctor my score if anything worsens and she just ups the dosage of the inhaler. I've had issues breathing at night and I am afraid to go to bed because I wake up needing to catch my breath. I've seen so many doctors for allergies and I am so upset at this point.

I have no idea what to do. I've not gotten more than 3-6 hours of sleep a night and I've been a mess lately.

I agree. Time to see a good pulmonologist for diagnosis and more effective treatment.