Hi, I’m having a total crisis and need some thoughts and opinions. For the past week and on and off for a few months I’ve been getting a numbness and tingling sensation down my left arm. The is sometimes accompanied by a full sensation in my armpit (although to touch it feels totally normal!) I’ve got a ridge of glandular tissue in the top of my breast but over the last 5 days ira become tender to touch. I have been palpating away numerous times to both my armpit and breast and now have a constant dull ache. 

Ive googled absolutely everything and am now fearing the worst. I’ve been to the GP and have a breast clinic referral. I also have an mri head and neck booked to check for another other reasons for the arm sensations. 

anyone had anything similar? I’ve research fibrotic tissue, mastaglia and various things but keep coming back to the big C as the answer. I’m terrified.