what's wrong with my wedding ring???

[danroll]

so i went to a jewellers and was measured as a W. i went to a different one the following day and measured a Y.

a week later just before i bought the ring online i went to another (very reputable) jewellers who confirmed i was indeed a W.

I bought a W, when it arrived it was too tight so i went to the jewellers who confirmed the ring was definately a W but i actually measured an X. Three different jewellers said the same.

i have had my ring altered to measure an X and now it has arrived it feels too tight.

all times i have been measured i have used the same width of ring.

can anyone please tell me what is going on???