Loosing weight have lost 17lbs since january. had mri of brain ok, had ct of chest with contrast ok, had ct with contrast of abdomen and pelvic. do you think i have cancer is the reason im loosing weight?

Weightloss could be due to many things including cancer, infections, malabsorption etc. You have been evaluated by history, physical exam and imaging studies shows that you have somebody you could talk with rather than a forum like this because you have not given adequate information for anybody here to tell you definitively the cause of your weight loss. Are you eating well and no eating disorder

It is understandable that you who would an answer to your concern. Although, this forum would not be able to answer your personal health concern. Much more detail is needed. In my experience, without special dieting, there are two common reasons why a 44 yo lady would lose weight, most common is depression or emotional stress, second is diabetes. Although there are many other reasons.