Hi you two and thanks for responding.
I have been referred for physio now, just waiting for appointments etc. I have tried to do exercise but it just made everything worse. Before this happended I was swimming 1 to 2 miles a night so I thought swimming would be a safe bet. Hardly did anything but my muscles went crazy, at the moment even walking up stairs or standing for too long so sets everything off. I know this could be because I haven't donw any significant exercise and have tried to 'push' through but I seem to suffer for days afterwards at the moment....let's hope that will improve. I have spoken to my doctor since I posted this question and she explained the whole ck, spasms/cramps and muscle wastage. She said something is damaging my muscles, this could be due to the nerve problems etc but they are keeping a close eye on the levels.
Thanks again for your advice, I really appreciate it.