Hello and welcome to HCM
Swelling on side of neck which is raised and soft can be due to multiple reasons.
The soft tissue
of the neck which includes fibrous tissue, muscle, adipose tissue
, blood vessels or even arising from the skin itself.
The diagnosis requires a clinical examination and fine needle aspiration cytology (FNAC). FNAC is an office procedure in which a needle is inserted into the swelling and the cells are aspirated and examined. If the material is sufficient then most probable diagnosis can be made. Depending on the findings an excision of the swelling can be done.
The cause of emotional lability requires some more history. You can post some more details regarding this problem.
You need to visit your doctor for examination and investigations.
Thanks and take care
Dr Shailja P Wahal