I have just been to see a doctor again with my lump and he said it's an abscess but could be a fatty cyst or something. He said if it didnt go in 3 weeks to go back and get it cut and to stop worrying because it definitely isn't cancer. I gave him my list of other symptoms which i have posted at the top and explained that i suffer from HA and he said all my symptoms sound like anxiety. He took my oxygen levels, temperature and listened to my heart and all is fine. So i will have to try and give myself a shake