Lung health improving after moving.

Hi, I've been sick for almost 2 years with shortness of breath, coughing, fatigue and asthma has been bad. I became sick shortly after I moved into this shitty apartment. Ive been to the doctor 100 times and will be seeing a specialist soon after a canadian wait time.

Ive had pneumonia twice and bronchitis 6 times in these 2 years. Ive had many x rays and tested for mold twice. My doctor seems clueless about what is going on and we have been just waiting for the lung specialist ( for over a year).

A few weeks ago I moved out of the shitty apartment after my lease ended. Ive been feeling better for 2 weeks which hasn't happened in the 2 years.

Is it possible that both tests were false negative for mold? Or is it possible there is something else in that apartment that could of been making me sick?

I never pushed my doctor about mold because I never say signs of it in the bathroom or on any walls.