@songinmyheart54: it's so difficult to have to deal with multiple diagnoses of cancer and then have to manage side effects of treatment as well.

Shortness of breath has been reported with Keytruda for some individuals. I presume you have been undergoing routine surveillance with imaging after having the metastatic melanoma diagnosis; by this I mean, regular imaging such as CT scans at various intervals to check to see if there has been a recurrence. Most treatment regimens for Keytruda are capped at two years. I'm curious as to the rationale for remaining on Keytruda indefinetily. Have you discussed this with your medical provider?