Hi Paz
Sorry to hear that you might have one of these conditions.
I would say don’t read too much negative into things. There is a wide spectrum of conditions in the MGUS; Smouldering Myeloma; Multiple Myeloma cycle. I hope that you are at the MGUS end and that you remain there for a long time. From MGUS you have a 1% per year chance of developing into Myeloma and so you can sit at MGUS for decades. As far as I am aware, MGUS causes no issues for you (other than perhaps needing to drink lots of water?).
I was diagnosed with MGUS back about 18months ago but the investigation kicked off after a routine blood test 3 years before that. It took a long time to get the diagnosis! I am now 44 with the initial test being made when I was 40.
Wait until you get the full results before jumping to any conclusions.
Toby