Seek for 2nd opinion. Does Tricuspid Regurgitation with TVG of 11 mmhg, opening snap murmur, and RA/RV enlargement still can categorize as 'TRIVIAL'?

2nd opinion. If I recall correctly you also have a pacer installed. This could contribute to the findings you relate. For a valid second opinion you need to see another doc who can use all available information to give you the opinion based on the most data.