Thanks chaps, all i know is that i've done 30 - 40 dives in 9 years and every one has been a struggle. I kept meaning to see an ENT specialist at home but never got round to it seeing how infrequently i dived. Now i'm on a years trip visiting some awesome dive destinations i'm regretting that decision. I really hope i'm not going to have to give up diving as it's one of the experiences i really would like to take back home with me at the end of he trip.Bloody ears!!!
Sounds like you have a structural issue and/or chronic congestion. Hopefully you can find a specialist on your travels. Sounds like an awesome trip -- I'm jealous. Have fun and dive safely. Cheers. Tom