I understand you are experiencing discomfort. Widespread pain, joint pain, and body swelling can be linked to several treatable conditions, such as inflammation, thyroid issues, or fluid retention. For temporary relief from the pain, you can take paracetamol. However, because you are experiencing swelling, it is important to avoid self-medicating with other over-the-counter painkillers like ibuprofen, which can sometimes worsen swelling. I highly recommend seeing a doctor for a proper evaluation, which may include simple blood tests to find the root cause. Meanwhile, try to rest, limit your salt intake, and keep your legs elevated when sitting to help reduce swelling.