Could this building be making me sick?

Been working for 3 1/2 years at this place and after the first year is when everything started. Had pneumonia 3 times in 1 year. Took antibiotics and steroids. Felt better for 3-5 weeks. Then the same symptoms come back. Docs say that it could be chronic bronchitis or COPD I don't even smoke. Took a leave of absence for a short time while feeling better and had no problems, then finally went back to work and the very first day, everything started started over again. I work underneath a vent and I have heard that the building might have asbestos in it. Could this building be making me sick?