I have swollen lymph nodes under my chin without any
How big are those?
It is not uncommon to find swollen lymph nodes in these areas. If they are under 1cm in size, most often they are 'reactionary' lymph nodes and don't cause serious health concerns. They just need to be watched over.
That being said, I think you should consider consulting a local physician to physically examine the region and other lymphatic system. If there are more lymph nodes swollen in other areas, a biopsy should be planned.
Hope this helps. Let me know if you need clarifications.