It could also be Lymes disease. If you end up with that or fibro please ask your doctor for a prescription for low-dose naltrexone (LDN) which helped me tremendously with my fibromyalgia symptoms. If you search under this topic you will find lots of discussions about it. It's beneficial for many inflammatory diseases. You can find articles about it on-line as well. Here's one. https://www.verywellhealth.com/low-dose-naltrexone-ldn-for-fibromyalgia-cfs-716070