Welcome in H.C.M.
Regading a lump you have noticed at pre auriculat region on left side, and you were also having problem in your left eye as well.
According your medical history it appears as you are having pre auricular lymphadenitis
and it may be due to-
1- Infection in Left ear.
2- Infection over scalp
3- Infection of left parotid, eye, maxilla
To confirm the diagnosis we should do-
a- FNAC from lump
b- C.T.Scan face.
Probably your query is answered.