Similar post to the other one. The other one is just so huge and I have my own issues.

For the past month, I am having a difficult time breathing. I normally have anxiety but haven't had any lately. This is really not anxiety-related. I also have extreme dizziness, nausea at times, sometimes headaches (today was a killer). I have a little cough when I can't breathe at all. I don't wheeze nor do I cough up anything. I moved to this state about 5 months ago. I went to the doctors and my heart "sounds" alright (just did a brief listen) and my lungs are clear. He gave me an asthma inhaler and it doesn't seem to work anymore. I have only used it a few times and got it last week. At the doctors office, it worked a little. The next day, it worked slightly. Now it really doesn't seem to work. I had asthma as a child and this just seems so different.
I can't even walk up a flight of stairs without feeling extremely winded. This weekend, I walked up three flights of stairs and it took me about 15 minutes to catch my breath. When I have to walk quickly to get my phone, it takes me about 2 minutes to recover. I just had my second baby (4 months ago).

The doctor initially stated that it's probably just allergies. I find it hard to believe I am allergic to something this much. Does anyone else have allergies with these symptoms. I am wondering if I recently developed an allergy to something.