Joy is completely right. Asthma is not a condition to take lightly. When it is chronic and uncontrolled, it can be life-threatening. Seek medical attention and be compliant when provided with a medication regimen.
Holistic treatments have their place in the world, but NOT when it comes to controlling asthma. We're fortunate to live in a time when there are actually treatments for the underlying cause of this disease. I'm 61 and when I was a child I suffered from allergies and asthma before there was anything other than an over the counter inhaler called Primatine Mist. It wasn't good.
Now doctors have a much better understanding of the condition and you can get help with it. People can die of asthma, and they do. If your breathing gets bad, get yourself to an emergency department. See your primary care doctor, and if you can, get referred to an allergy/asthma specialist.
Have you tried taking an antihistamine? The headache and increased tightness can be brought on by pollen exposure. Another reason to see your doctor for a workup. It is important to get the underlying lung inflammation under control. That's what makes your asthma really improve. Do you have a rescue inhaler?
You can do this!