Same here 
Tinnitus Talk Support Forum
I just wanted to add I still get that thump thing from time to time was diagnosed with Tonic Tensor Tympani Syndrome (TTTS) was reading I could get the nerves burned off but that's a plan B option.
Damn really for years!? Yeah same mine thumps like when something like a pen falls on the ground thankfully it doesn't do it to things like conversations but it's still annoying. Do you have loudness H or reactive T? Life has been limited these past few months