Thanks for your replies I've been meaning to get back on here, it's been 6 almost 7 weeks now since the surgery, my energy levels have improved slightly, I ended up getting some blood tests done and discovered that i had an abnormal thyroid, but had tests done again last week and came back ok now. My legs can still feel very heavy - every morning they feel heavy and by the end of the day they can ache. It has been a very slow recovery!