allergy/asthma/breathing difficulties- ANY ADVICE WOULD BE GREATLY APPRECIATED!!!!?

[Aubie]

I am a 1st year school teacher(in a trailer) and I have been sick for 8 months now. In September I was told I had Walking Pneumonia. They gave me 2 shots and antibiotics. I feel like I never recovered! I have to continuously go to my family doctor. My symptoms are hacking/unproductive coughing, congestion, shortness of breath, frequent nosebleeds, fatigue, dizziness, swollen glands, extreme tenderness under my jawline/behind ears, the tip of my nose tingles(sometimes), and I often feel like I not getting enough oxygen. The palms of my hands sometimes become very splotchy and almost translucent, I can clearly see my veins. I have been on many, many different antibiotics, inhalers, Singulair, and nose sprays; nothing has worked!!! I am losing the hope of ever feeling "normal" again. Again, like I said, it is my first year of teaching and I know it is common to catch everything until you build your immune system, but I am miserable and it is affecting my everyday life!