Hello, I am a 37 year old male and I have found a lump on the inside of my upper arm between my elbow and armpit.  It is not tender to touch it.  I have also been feeling extremely tired lately, but this could be due to me being a diabetic.  I had blood work done recently and everything was fine except my A1C was elevated and my proteins and potassium were slightly elevated.  Could any of this be related to the lump in my arm?  What could the lump in my arm be? Thank you!
Hi. Thanks for your query. The most probable diagnosis for a lump which is painless at a site you have noted here looks to be a lipoma. The best way is to get this excised under local anesthesia after your blood sugar and other parameters become normal. The lump is not related to any of the things you have mentioned. Elevated sugar, proteins and potassium has noting to with do this problem. They are medical problems which a Physician will get corrected.