Dealing with chronic pain for five years is challenging. Since wearing a helmet worsens it, the extra weight likely strains your neck and spine. For temporary relief, you can try over-the-counter generic pain relievers like paracetamol, or oral/topical NSAIDs like ibuprofen or diclofenac gel. However, medication only masks the symptoms. I highly recommend seeing a doctor or physical therapist for a proper evaluation, which may include imaging. They can guide you through targeted physical therapy, stretching, and posture correction. Additionally, consider using a lighter, well-fitted helmet to reduce neck strain. Avoid self-medicating long-term, as finding the root cause is key to lasting recovery.