My mom has a similar reaction to Thalidomide. She was extremely paranoid, thought there was a conspiracy at the hospital of Christian zealots out to get her. At the time she also had a blood clot in her neck. ONce she was taken off the thalidomide, she went back to normal.
Medications have different reactions with different people. Velcade, for example, worked wonders for my mom and had her in remission for almost two years. Then she tried it again, it didn't do anything but make her blind.
You need to communicate with her doctor. I have found that is the most important thing. Too bad for me that my mom's doctor refuses to return my calls and everything goes through the port of admin to RN to hemotologist to RN to admin and things get lost in translation that way. I make it a point to be at my mother's actual appointments. That way her doctor has to answer my questions.