And yes cynna I spent the entire day up the hospital yesterday. Ended up getting a ct scan which showed no clot but some fluid had built up around my heart. I opted for the wait & see option rather than putting myself through invasive tests Im going to wait & see how I feel & how uncomfortable my chest/upper back is over next few days. If it doesnt ease up the dr gave me a direct telephone number where I could get through to his team & theyd see me straightaway & do the other tests. He says its quite likely to be some sort of virus which has caused fluid to leak into the pleuratic area from my lungs or something like that. All I could take in was I could leave after 2 days of torture. Went back to work today & yes I wasnt right but I did the full day although the pain was quite bad towards the afternoon & I was breathless all day. Will just use public transport instead of my usual walk to work for next week or so, that way I dont overdo things.