Trouble swallowing, feels like something constantly stuck

I've been having on off problems with my throat for a few months but consistently for the last 4 weeks.  Was told it's probably globulus and nothing to be worried about. 10 days later still having trouble.

problem swallowing food/my own saliva.

contstantly clearing throat,

loosing my voice on and off,

ferls like something is always there.

ive now after fighting with gp,had a referral to ent for a gastroscopy in a few days time .

im petrified it's cancer