anyone know what this could be? I haven't been to a dermatologist yet going soon. I've had it since September I can roll it in between my fingers like it's a ball but it's under the skin not on top at all. I thought it was a cyst this whole time so I just ignored it figured one day I'll get it taken care of. but I'm starting to worry for the past 3 days I noticed it darkening in person it's almost looking like it's turning black maybe? idk I've tried popping it multiple times even today and it's completely unpopable.