Should i be worried about cancer?d i recently discovered a bald spot bigger than a dime next to an odd mole on my head. the mole is pretty big lumpy pink with a brown spot in the center. it has grown over the years. i also experience ringing in my right

This : This is hard to answer without a clinical examination so i would see a dermatologist to evaluate the mole and the bald spot but also see your primary care doctor for your other symptoms. See a picture of abnormal mole/skin cancers/possible melanoma at the link below. I hope that helps.

Odd mole: See a dermatologist to evaluate the mole. A mole that changes size and as different colors such as the pink and brown you describe could be abnormal.

Get checked out: You should get this area checked out. It could be nothing but it could be a cancer as you questioned. Only a detailed examination by a trained practitioner can assess for this.