<s>[INST] I feel a lump by my jawline and ear lobe, parts of my face feel numb sometimes.  You cant really feel it until I turn my head to the opposite side. It doesnt seem to bother me and I am not sure how long its been there. I noticed it a couple of weeks ago.   Although about 1-2 months ago I woke up with extreme neck pain like I had a pinched nerve. I have a feeling its related to the lump. [/INST] Welcome to Chat Doctor. 1. The most possible cause could be submandibular cystic dilatation - sialadenitis.2. Other possible causes could be submandibular gland lesions, bony cystic lesions.3.Finally, lymph nodal enlargement. To conclude the diagnosis - primarily ultrasound examination will help to evaluate. 4. Ultrasound will help to evaluate the nature of the lesion, its source and extensions.5. So I would suggest to request for an ultrasound scan and further depends on the scan result. Good luck. Hope I have answered your query,anything to ask ? Do not hesitate to ask.http://doctor.ChatDoctor .com/doctors/ Chat Doctor.  </s>