Hello, Thanks for your query. This is typical location of swollen lymph nodes due to respiratory infection or any other kind of infection. Sometime it is some other benign subcutaneous lesion such as cyst,fibroma,ateroma or lipoma. Less common it can be dislocated part of thyroid gland and this would explain your tiredness. Rarely,this can indicate some more serious malignant diseases ,but this is the last thing to think of. So, in every case,you dont have to be concerned.You can wait for 1-2weeks and see what happens.If pain and lump subside then this was obviously swollen lymph node.If this persist you should do ultrasound and needle biopsy. After this,you ll know exact diagnosis. I do hope that you have found something helpful and I will be glad to answer any further query. Take care Warm Regards