Went to the doctor again complaining about my weird back feelings, she told me that I should do a number of tests, one breathing test in 3 weeks and a blood test whenever I'm free. She listened to my heart and chest and she didn't seem concerned, she gave me a preventer inhaler because there is a possibility it is asthma again. But she also told me there a 9 tests my blood need to go through and one was an iron deficiency, as that can have the same symptoms or a blood clot which could be life threatening, but obviously that's just a precaution. However there are another few tests but I can't remember what they're for! 😂
I went for the blood test half an hour later and I went in straight away, no waiting. The lady was really nice and it didn't hurt. My results should come back tomorrow. Fingers crossed everything is okay!