I went to the doctors again and she told me that it is most likely asthma as my symptoms are very similar, but I will only find out after my spirometry test in 2 weeks. She also had me do am ECG just in case it could be my heart, however it all came back clear and she re assured me that there is nothing major wrong with me as my x ray was clear and so was my chest and my blood tests were normal, therefore I am technically perfectly healthy.
After my spirometry I will see my doctor again to review everything, and if its not asthma and I'm still like I am now, I will be referred to a respiratory clinic. If it is asthma I will obviously go the asthma nurse.
My doctor also told me that because I have been ill for so long with no explanation I probably have some anxiety too. But I have never had it before as I am barely ill so she has given me techniques to improve my breathing.
I still have my costochondritis symptoms, but it has only been 1 week, so I'm still having cramping and stabbing feelings on my chest but luckily they come and go. I think my back sensations are improving and I think i am getting better with my breathing. So I think everything might be getting better.