Ah man nightmare, take it easy (have you got one of those finger thingy's to read your oxygen/pulse levels?) Can pick 1 up at Amazon for under £20 just to be safe.
Feel better soon fella and all the best xx
Thank you, Im just keeping an eye on it for now. Ive spoke to the Dr and he said it can take weeks to get over the breathless feeling. Its getting better, and Im still able to go to the gym 3 times a week and do something so, like I said, Im very lucky.