### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
2 years ago I started to become more sensitive to cats dander and would start asthmatic bronchitis which would not go away so I had to take ketotifen for 2 months. I decided to start immunotherapy with cat and dog dander. Everytime after shot I had a reaction. On the 7th month of the theraphy I developed shortness of breath, tightness in chest, I started to react to everything (cooking fumes, people s odor and etc.). So I started to take Montelucast along with Ketotifen 2mg twice a day and stopped vaccination. 5 months later symptoms got even worse (still taking medication). Now I feel like very second I have to take a deep breath, feeling like there is no room to breath in. I had blood test done ( Vitamin D came out very low and IgA very high), also I had a chest X-ray done (Hyperinflation of the lungs). Now waiting for PFT to be done and referral to a pulmonologist ( which I cant see sooner than in 2 months, they are all booked. I wonder, what is going on with me? Is it empyzema, COPD or just asthma? Allergist prescribed Pulmicort (should I start taking it?) Allergist is not aware of x-ray results. thank you.

### output:

Thanks for your question on Chat Doctor. I can understand your situation and problem. Yes, possibility of COPD (chronic obstructive Pulmonary disease) is high in your case. Long-standing asthmatic bronchitis can cause COPD. And you're all symptoms with chest x-ray are suggestive of COPD more. So you need to consult pulmonologist and get done PFT (Pulmonary Function Test). PFT is needed for the diagnosis of COPD. It will also tell you about severity of the disease. And treatment of COPD is based on severity only. You may need inhaled bronchodilators and inhaled corticosteroid (ICS). Pulmicort is inhaled corticosteroid. But better to first consult pulmonologist and diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.