I wouldn't do a shotgun approach, especially if not dowsing. The way things are layered together like plywood (Newport's description), they can be 10 layers or more deep. Buski's, different types of tapeworms, different types of ascaris, filarial types.
Start working seriously on your dowsing, and as long as you have the doctrine running 24/7, you'll be able to start dowsing for what the doctrine is working on, or has already covered.
Practice dowsing by the bean with it running too. It makes a difference.
One of the most important things that dowsing would help you figure out right now, is what specific supplements are needed daily. They change often.