Welcome to HCM
We understand your concerns
I went through your problem description. I suggest you not to worry too much. Navel displacement is not studied enough in modern medicine and therefore hardly any treatment method is found. In fact it is not treated as a problem.
But there are evidences and studies and treatment methods in yoga
therapy. Please contact a Yoga master for further treatment and advice.
Hope this clears your doubts. Available for further clarifications.