इन्टारनेशनेल एससिएशन फर स्टाडी अफ पेननि बादिब्ला , बेयो गले गले जाग्रा बे बादि सानाय , जायनि जाहोनावथʼ आइजोफोरनि बेराम जाखायो , नाथाय बे जानायनि गाहाइ जाहोन आरो गुमुरखौ दासिमबो मिथियाखै ।
According to the International Association for Study of Pain , this is such a pain occurring again and again , because of which , but the main reason and cause for its happening is unknown .