Is it astham or not

One year ago I was sick of cold and coughing after a day of swimming.
From that time till now I am suffering with coughing is raised up only after doing exercises. During the last year I have visited some doctors and at the beginning they said it is starting of asthma and they give me some medicine, and other said it is senesivity and give me some medicines .I got a chance to go to Germany last year and I did some checking of asthma and confirm that I don’t have ,and said I don't have asthma .I don't like to have this every time I do exercises .
I like running and walking .They only swimming is good and no coughing

The status was improved to get better from last year,but yesterday I was running in a hill ,after completing this I got the coughing again and it takes about 30 till the body come down .

Could you please help me and what is the medicine I have to take to make it disappear?

[MOMMY975]

I would go to a pulmanologist and ask him or her to do a methacoline challenge test.  This test is pretty accurate in determining if you have asthma.  My asthma acts up every time i clean or do anything streaneous.  As for medicine, if your doctor determines you have asthma there are some good controller medicines that can be prescribed.  My medicine has stopped most of my asthma attacks and cut back on the exercise induced attacks.  I hope you find a doctor to help.  It took me eleven years to find a doctor to test for asthma to get me on medicine.