Hi treated for prostrate cancer a few years ago prostrate was removed.cancer came back had radiotherapy with in 6 months.have stayed clear but now have lost appitite for a few weeks don't feel hungry stomach feels strange  .have had on going problems with wanting the loo a lot .seen to get flare ups of proctitus but now just don't feel like eating.due 6 monthly blood test and old man's mot .has anyone felt like this