I had a cold in January-08 I noticed a big mass on my chest about the size of a lemon underneath my collar bone right side, I went to see a doctor and he said it was from coughing and the antibiotics would help it go away. In March-08 it was still there, but now with pain... a lot of pain, I feel preasure and it feels heavy. Today is May-2-08 I have seeing 9 doctors, 1 mamogram, 11 x-rays of chest and rib cage, ultrasound, all the test are normal and the doctors just keep saying "there is definitely something there" but they don't know what it is. I feel numbness & pain on my right arm and hand, also shortness of breath. I went to urgent care last week, blood preasure was 99/155 and ekg was okay, but not normal. I don't know what I have... I am so scared, I am in so much pain, I am only 32 and weight 112 pounds.. the mass is not getting smaller, could it be a tumor? could it really be related to my cold in January?