Hi Sandra,
I'm sorry to hear you are having troubles. A cancer diagnosis is a real hammer-blow and it's totally understandable you are feeling anxious and depressed.
I know you say that this isn't due to the diagnosis, but I can't help but feel it could be a pretty big contributor. Almost all patients who have CML go through some sort of anxiety or depressive episode when diagnosed. It's a lot to take in. It can be overwhelming and that can manifest itself physically too.
I am not aware of any causal link between imatinib and anxiety or depression - but you will find that a number of people who take it do have those symptoms, but perhaps not directly related to the actual mechanics of the drug itself.
Looking back to the year or so after I was diagnosed, it's very clear to me my mental health was not as good as it should be, or normally is. It took me a while to come to terms with my diagnosis, both physically and mentally. I think once the disease was under control in a medical sense, that was the point that I started to become more comfortable with CML and started to return to my normal self. It took me a long time before I'd go through the day without being anxious about it.
David.