ive had severel swollen glands under my left armpit at first there was only one big one and i was 16 at the time, now im 25 and theres still the big one but lots of little ones clustered around it, it hurts if i investigate them and sometimes when im on my period they swell more and hurt more. i use to self harm by cutting my arms and the doctor has told me its because of that but its really worrying me because i worry that maybe its cancerous or could turn into cancer if the lumps arent removed, can anyone help? ty xx