My husband (49 yrs old) has NSCLC stage IIIB and started Tarceva about 2 weks ago. No sign of improvement yet. One of his major symptoms (it started before taking Tarceva and hasn't changed) is that he perspires. He gets drenched in his sweat and has to change clothes and sheets 7 - 8 times a day. Anyone has similar experience? Overall, he is very weak and under a lot of pain.