Robert:
Have you had a CT scan lately? If not, I would request one. This is not the "typical" side-effects from Tarceva. On the official Tarceva web-site: www.tarceva.com it has the following under "Taking Tarceva, Side Effects and Care":
Call your doctor right away if you have these signs or symptoms
Severe or persistent diarrhea, nausea, loss of appetite or vomiting
Onset or worsening of unexplained shortness of breath or cough
Eye irritation
Be persistent! Don't take "no" or "I don't know" for an answer. - Kim