I think I need a bit of reassurance. Having been diagnosed with asthma after getting a chest infection I am really worried. I have been very breathless until being put on oral steroids but tonight having broken into a fast walk as | was late getting my son from football, my chest tightned, started coughing and I thought - God it was only a quick walk not a marathon. Can anyone who has more experience with this give me some advice. I am supposed to be off work next week as well but guilt is forcing me to try to say I will go back in. This is after being off for the last 3-4 weeks!