Those of us who have lived with anxiety know just how crippling it can be. You mentioned a balance issue. Do you mean this in a physical or emotional sense?
If it is physical, please know that it is not uncommon for anxiety to be so overwhelming that it can create its own physical symptoms. The fact that they are caused by anxiety doesn't make them any less real! It just means that the way to address the physical issue is through addressing the anxiety.
Your attempts to hide your anxiety and limit the effects on those around you resonate with my own experiences of mental ill health. It has taken a long time to realise that such efforts are self defeating. When we cannot express or stress, anxiety or strong emotions, they tend to come out in other ways, including physically.
Welcome to the forums as a fellow newbie! Please keep in touch with how you are going.