35 is very young to be diagnosed with MGUS, but a longitudinal study being done in Iceland IstopMM, gathering data from all the adult population over 40 who will agree to do it, has already shown that MGUS is more common than was believed.
Although the peak age for developing MM is around 70, there have been a few children diagnosed with the disease, let alone MGUS. Hopefully your paraprotein level will just stay stable, causing you no harm. I think it’s worth trying to keep inflammation down, I was diagnosed with hypothroidism (Hashimotos) at the same time as MM and I believe that the inflammatory processes involved in both, made both conditions significantly worse. Now my MM is stable I’ve had no further issues with my thyroid.
I’m another patient who definitely tries to save worry for when I know it’s needed, it’s a useful strategy in life in general although I suspect all of us were rocked to the core when we were diagnosed , whether that was with MGUS, Smoldering MM or active myeloma.