Look up the vagus nerve. I had covid and I suspect it damaged the vagus nerve as well as parts of my automatic nervous system that controls my heart rate etc. You can check for a problem with the vagus nerve by checking your gag reflex. If you notice a change in your gag reflex it might be a sign that there’s a problem with the vagus nerve. I have consistent bloating that doesn’t go away as well. There’s supplements and info out there that can help. Look up the nootropics forum about the vagus nerve. Do lots of research because I don’t your health history and medications you take. I also know you can blow on your thumb or suck it since it helps stimulate the vagus nerve. There’s also tools online that helps to stimulate the nerve.