Hi, Joint pain in the hands can have various causes, even in people who have Raynaud s Syndrome. Some possible causes of joint pain in the hands include: * Rheumatoid arthritis: This is an autoimmune disorder that can cause inflammation in the joints, including those in the hands. People with Raynaud s Syndrome are at a higher risk of developing rheumatoid arthritis. * Osteoarthritis: This is a degenerative joint disease that can cause pain and stiffness in the joints, including those in the hands. It occurs when the cartilage that cushions the joints wears down over time. * Gout: This is a type of arthritis that occurs when uric acid crystals build up in the joints, causing pain and inflammation. It commonly affects the joints in the big toe, but it can also affect the hands. * Injury or trauma: If you fell and twisted your foot, it s possible that you also injured your hands. Injury or trauma to the joints can cause pain and inflammation. * Carpal tunnel syndrome: This is a condition that occurs when the median nerve, which runs from the forearm to the hand, becomes compressed. It can cause pain, numbness, and tingling in the hands. * Overuse or repetitive strain: If you have been using your hands more than usual or performing repetitive tasks, you may be experiencing joint pain due to overuse or repetitive strain. It s important to talk to a healthcare professional to determine the cause of your joint pain. They may recommend further tests or refer you to a specialist for further evaluation. Additionally, your recent change in diet (from low-carb to carb-rich) may be a factor in joint pain, as dietary changes can affect inflammation levels in the body. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician