I can certainly understand your frustration dealing with IBS. What functional medical practitioners have found is that medication is rarely the answer. It is usually life style that needs to be addressed and most of the time it is diet. Poor or improper nutrition, according to functional medicine, is the root cause of most of our chronic diseases. Don't confuse functional medicine with integrative medicine. Functional medicine finds the root cause of the disease and fixes the problem so you no longer have the disease.
Those are all great options but there are more. I work with an International natural nutrition company and teach people how to get healthier using a holistic approach. I am in business for myself but not by myself. I have the support and training of a huge business but am free to market products and grow my business as I choose.
I love my retirement from nursing. When I look back on my career, I am appalled at how stressed I was all the time - dealing with unsupportive management, time constraints, abusive patients, and the mountain of paperwork. I love what I do now. I am able to teach people how to get healthy and stay out of the sick care system. And I get paid to do that.