So three months ago I noticed a lump in my ear and on the back of my head. I waited awhile to get it checked to see if it would go away; it did not. So I got it checked and the lump on the back of my head was diagnosed first as a lymph node, then as a lymph node, the third time I went to the doctor they said it was a muscle. Then I went to the dermatologist who agreed it was a muscle and that the bump in my earlobe was a cyst. BUT NOW I found a bump just below my ear and my lymph node behind my jaw is swollen and has been for a couple months now. I do have a cavity and a growing wisdom tooth on that side that could be the cause. My question being could the doctors be wrong a bump on the back of my head, on my earlobe , below my earlobe, and behind my jaw??? Had blood tests all came back fine not even a high white blood count. Worried I have cancer or a brain tumor or something honestly, triggering an existential crisis. Any help would be much appreciated! ):