Hi, My sister is 48 and was diagnosed with stage 4 colon cancer in April this year. She had a resection of her colon. And is now on her 3rd cockail treatment. I live in Georgia and came out to LA to visit her and help take care of her. I was out here for her colon surgery. This time I brought my 8 yr.old so, we can all spend some time together. However, my sister's mood has been swinging from being very talkative to angry and very hard to work with. I know this is very very hard on her and I don't know what I can do for her. At this point I am thinking of cutting our trip from 2 1/2 weeks to 1 week. Does anyone have any advice?