thanks for all the replies.
i didn't know that about ventolin. mine is in date as i did check that today. since about 3 this arvie i have had 2 puffs every 2-3 hours.
i think it is a bit better now. there isn't the pressure in my chest anymore and my heart has slowed down a bit. im about to go to bed after i finish my hot cuppa tea.
if i wake up with it i will go straight to dr.

thanks again. it was just strange as i haven't had it like this before.