I've been having almost constant shortness of breath for months now and my doctor said it's anxiety, but I feel that if it was asthma obviously not being able to breathe would cause me to panic and be anxious anyway.

I don't have any wheezing but sometimes my chest and throat feel tight and almost always I feel like I can't get enough air in. There's also a weird cough that comes up every couple of months, I've had it for years and could never explain it. I feel like one side of my throat becomes irritated and I can't stop coughing until I drink some (a lot) of water. I literally carry a water bottle with me everywhere in case it happens. But this cough hasn't happened since the breathing problems started a couple of months ago.

I'm thinking about getting an asthma test but it's very expensive, for all I know it could just be anxiety. So since you guys know asthma better than anyone who isn't a doctor, does this sound anything like it?