I am so up and down at the moment. I have a terrible breathing obsession - I've had it before and its gone away after a while but I've not had it in so long its hit me so hard.
My chest is constantly tight, its horrible.
2 days ago i actually had a day where 70% of the day I managed to forget about it completely and i felt fine. Yesterday pretty much all day I didn't think about it either, and the sensation completely went away.
When i got home and was idle for a bit last night i started thinking about it again and now its come back, and today i am struggling again.
I've been checked over at the doctors when it first started and everything was normal.
I just feel stuck in a rut 
Looks like it comes back when you think about it, Georgina. I know it's a horrible feeling. You need to find some method of distracting yourself when it happens.
It's good that you saw the doctor. Did that reassure you or did you wonder if something was missed?
Hi Mac, yes i am my own worst enemy! As soon as i think about it bam, it's there. If i do manage to engage in something that takes my full attention I will forget about it and the sensations just disappear and at that point i wonder what i make so much of a fuss about. Then it starts again and i remember!! Well and truly caught in the cycle.
It reassured me for a bit but yeah i keep thinking they have missed something or worrying that the doctor just couldn't be bothered so just sent me away telling me everything was fine. Silly, i know!