My Husband Has Exhibited The Following Changes Over The Last

My husband has exhibited the following changes over the last month or so with symptoms increasing: lethargy, sleeping more, confusing words (example: using temperature when describing that he has lost 2 more pounds), handing the bank teller the incorrect credit card and not knowing he did that-two tellers within 5-10 minutes, had trouble picking up two items from the pharmacy ( Vaseline and hydrogen peroxide), thought he was to pick up a prescription, had pharmacy call me and came home with the peroxide and sun screen. I am thinking stroke or brain tumor.