Know im dying but weeks or months?

Hospice. These experts can be so helpful at end of life.Please avail yourself of their assistance.
Impossible to tell. Nadia, if this is true then we are very sorry. Only your health care provider could give you an estimate of how much time you have left, and even then it is always an educated guess. There are organizations called hospice in nearly every city that can help you and your doctor work through this. Good luck!