Hello. I'm not sure from your post if you have seen your ENT since returning from Fiji. Have you had a biopsy? Have you had a CT/MRI ? Or are you just preempting it all?
A reoccurrence is very scary, but if this is the case you will get through it.
Don't jump to conclusions. Wait until you have a definitive diagnosis and treatment plan if one is needed.
Should you need a laryngectomy, you will survive that too. We went through this surgery in March and should you have to go down that path we will be here for you.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!