For the past 2-3 years, ive had a problem catching my breath and breathing after running, cycling, sports etc. But i dealt with that by drinking ridiculous amounts of water at the time and laying down.
2 months ago, I cycled to my local supermarket, as soon as I arrived there, my chest was pounding so hard and I foud it difficult to breath in as it hurt so much. After about 5-10mins of trying to calm it down, (by this time im sweating and very dizzy,) my vision blacks out and I pass out. When I woke, (about a minute or so later), my chest was still painful and felt really heavy, even my heartbeats hurt (which sounds ridiculous). My throat felt raw and I had a horrible rusty taste in my mouth. Once I reassured the onlookers and my helper that I was okay (i lied), i went home and straight to bed as i still felt dizzy.
Now, since then, I cant do anything that requires me to do anything other than walk, my chest just starts pounding too hard and I begin to lose my focus, also the rusty/metalic taste comes and I have to either sit and lean up against something or lay down.
I have family members with asthma, but they insist that I do not have it. I am over-weight, at 14stone, (im 17), but ive always been active and 'on the go' , so I cant see how my problems are caused by this.
Please help!