I need help with treatment and more so diagnosis. Seems it is misunderstood. I have triggers. Cold, smoke and humidity the worse. When I go into cold weather I can’t breathe. My oxygen goes to 70 and my heart rate goes to 200. It gets better when I enter room air. it gets better at em room with nebulizer treatment. Took a methaclorine challenge that was negative and told I do not have asthma. But still th Breo I was given has helped. Numerous times I almost lost control of the wheel driving, once my daughter took the wheel. I believe it is asthma of some type. I wheeze. I feel like an elephant is sitting on my chest. I feel like I am breathing through a straw. My lungs fill with fluid. I am fully ready to call it quits after 7 years with no diagnosis or help.