Hi.
Thanks for your query.
Noted your history of pulsating pain behind the left ear. This can be due to a
lymph node which got inflamed and thus causing the pain.
Your another problem is related to the
costochondritis or an inflammation of the lung or the underlying
pleura, hence the pain on breathing and moving.
I would advise you the following;
Get a clinical evaluation done by a Doctor.
To see whether either is any herpes as the pain is referring to the back as occurs in
herpes zoster.
To see for local tenderness as one gets in costo-chondritis.
To get the investigations of the blood, urine and stool.
X-ray of the chest and the
CT scan to confirm of any positive findings.
All these exercises will help us to get the proper treatment.