Hi, and welcome to OCF!
No, you should not be worried. A biopsy and referral to an ENT is exactly the right thing.
Don't go Googling things and scaring yourself. Keep calm and wait for the medical investigation to run its course. Your doctors have you on the right track to investigate the problem.
Cheers, Dave (OzMojo) 19Feb2014 Diagnosed T2N2bM0 P16+ve SCC Tonsil.
31Mar2014 2 Cisplatin, 70gy over 7 weeks (completed 16May2014)
11August2014 PET/CT clear.
17July2019 5 years NED.
