Hi Paul
Sounds like they found it fairly early which is positive.
I would imagine Chemotherapy and steroids will be prescribed, which sounds scary but they are normally well tolerated and you will get used to taking them. This will also help slow down or stop anymore lesions. The medical team will explain about side effects and other medicines that came help with them,
You might have a Stem Cell Transplant {STC} once the Chemo starts to work. Again. your medical team will explain the process. This can be really effective and long lasting.
Its so early in your diagnosis so you will probably not take all the information in. Keep asking questions even if they are the same as before. The medical teams expect it.
Protecting the family from your worries is what we do, My advice is contact Macmillan, They can offer lots of support including counselling which is where you can express you worries and fears. They are there for family too.
It is such early days for you Paul. It will take time to come to terms with your diagnosis. With the help of the support from this site and other support networks and of course your medical team, you will soon adjust to living with a Myeloma diagnosis.
Best wishes, Fred