Hiya, just to thank and update everyone who replied. Tiffany has now stopped weeing on the bed and I have also discovered the answer as to why she did it in the first place. My suspicions of it being an attention seeking thing were confirmed yesterday morning as she pee'd on my bath mat while I was showering. If she meows and doesnt get attention staraight away she pees wherever she is even if it is 2 feet from her tray!!!!!! Anyway I'm not cross I'm just happy I know whats going on, I had her fully checked by a vet and there is def no medical issue although she is very small and light for her age (see my post on health and nutrition if there is a fussy eating klitten expert out there). She is def growing though can see a big difference in her in only a couple weeks.
