Kelly, I would like to urge you to obtain a copy of a video documentary called “Under Our Skin,” which is about people trying to obtain a diagnosis for the mysterious symptoms which are often caused by a previously undiagnosed contraction of LYME DISEASE. Lyme Disease is called “The Great Pretender” because it can mimic the symptoms of so many other diseases. It can have many manifestations including neurological, cardiac, pulmonary, nervous, dermatological, etc. Recently the documentary was free on YouTube. Previously, it has been found on Amazon Prime Video. If you cannot find it, you might be able to find a DVD copy on Amazon or through the website of the documentary producer. A sequel was also made called “Under Our Skin 2: Emergence.” The producer’s website is underourskin.com . I hope you will let me know whether you find this in any way helpful. My wife and I both endured a long and difficult battle against Lyme Disease and won. Of course, I am not saying this is the cause of your husbands ailments but I would like to suggest it as a possibility as a non-doctor layperson who has personal experience with the disease. If nothing else, you will be able to understand from the interviewees in the documentary that you are not alone in struggling to find a diagnosis and coming up short on answers. I feel that Under Our Skin will be worth the small price of the video (and can be found for free) and is definitely worth the couple of hours invested in watching it.