Returning to work

I hear you people think that when you finish active treatment that you should be back to normal. I really struggled for a while feeling I had to tell people I was well when I was still struggling. The fatigue was hard to cope with, I tried to exercise but lacked motivation. I finally started to get back on track and then had to have surgery on my knee and back to doing very little as difficult to walk. I have gone back to my counsellor, and I keep putting one foot in front of the other and try  not to put pressure on myself.