Hi Dave, sorry I haven't been back on here sooner but my dad has sadly passed away suddenly. It was such a shock and 4 weeks into his radiotherapy.l have just been on a roller coaster since his diagnosis and it feels so surreal. I am trying to come to terms with what has happened and feel so empty. He went from just having a sore throat to passing away after 10 weeks. Thank you for you previous response it was kind of you to reply.