Hi Ellie - I'm glad you have started a new thread. I meant to post before, have you considered starting a subscription based online consultation service? Business services seem to be much easier to set up e.g. payments via paypal.
Mt doctor has asked me to get a thyroid test done and I know I'd pay to have advice online from a knowledgeable person. We travel a lot, so in person visits are not always easy to set up. Plus I'm not sure my GP is that experienced in specialist areas anyway...