I was going to say the exact same thing that @tom_g said. Except if what they are telling me sounds like a scam.
I once had a guy come to fix my dryer. He told me it wasn’t working and was broken. I saw him take off a rubber band that turns the drum. He was going to charge me 300 or so for a new engine part. My mom said that a mechanic once told her that if you hear the machine still coming on then it means it’s still working. It’s just a part that needs to be fixed.
Well I opened it up and put the band back on and made sure it was in place. I noticed when he opened it that it was half out of place. I think this is what kept it from turning. But when he took the band off, it completely stopped working. Even humming. He said the engine was burnt out.
After I put the band back it was up and running again and lasted me a few more years. When I called him to ask for my money back he was still claiming it was broken and would not refund me the money for coming out to look at it. At first I thought he just made a mistake. Then I felt he was either incompetent or a scam artist.
Same for some pill pushing doctors who never cure you and but make guesses as to your situation and are way off base. To many doctors have become complacent with their jobs and have stopped bothering to really listen to patient complaints. Hell some don’t even do that any more. They have their nurses ask and they read the chart, come in and listen to your breathing and then walk out. You are lucky if they introduce themselves. I find it hard to believe that they know exactly what is wrong with you in seconds. No better than going to an herbalist who reads your aura.