Hi , I Am Having A Pain On The Left

hi , i am having a pain on the left side, under the breast and radiating at the back as well,ood and a headache, this has been going on for a couple of months, i may also have Lyme disease, tick bite was on my left breast above the nipple...i removed it myself and it was full of blood....lots of symptoms i am confused. i did see a doctor for this pain and nothing seemed to be wrong with the chest xray, nor the blood work for heart, they said it was probably muscular...