i have a long history with my ears , lets say their never my friend

so ill try keep it brief , iv had fluid coming out my ears since a realy bad ear infection 7 years ago still get ear ache on days and have discomfort daily they also feel full and block up every time i get a cold , they crackle , pop and hiss too , it does at times sound like rice crispys

but have learnt to live with it , i also have vertigo which came on after a bad flu about 4 years ago now which is much harder to live with . . iv avoided going on holiday for all this time but iv got the chance to go on a holiday off a life time but its a 9hour flight , im so scared my ears will block and i'll be left deaf through my holiday or my peranently damage them more , i have no idea what will happen with my vertigo either .. please if theirs anyone out there that counld give me some advice or let me know their experiences of flying it would be most helpfull . .