Thanks for your reply kiwi angel I have appointment today with GP so will speak to her about melatonin. I am questioning whether these medications they prescribe are beneficial or detrimental, certainly not easy for those who are taking and suffering with them. The specialists and oncologists are doing what they know to do but I often wonder if they were to take these drugs whether they may change their hard core attitude about them. Not feeling very charitable about this at the moment, too sleep deprived. Admire all ladies out there going through same.