It isn't easy and people don't understand it unless they go through it.
I have had 10 days off work in 2 years and have been threatened with the sack.
Some days i just couldn't get out of bed i was tired achey and had the worst headaches imagineable. The way i see it now though is if i don't get out of bed and got to work i can't have a nice holiday or buy new things and i know i'll feel better once i have been awake for a while.
It just comes with time i guess but you get there. I also take my tablets midday so by 4 oclock when i would normally start getting tired i am not because i took my tablet later.
Everyone is different but you shouldnt let it beat you. Theres lots of people with it you unfortunately just have to accept it and get on with your life and work is part of life.
It is survival.
And yes, I have been many times close to call in sick more often that I would like to, but, the overall situation has not been really good these last two or three years, so every time that I am feeling terrible and I do not want to go to work I think that I should be thankful for having one and I try really hard to have my best face at work.
Another thing, that it might not work for everybody, is that I have shared my story with some people at work that I trust. Why? because I do not want them to think I am nuts for free. because I like them and I want them to "try" to undesrand what I am going through and, most important, keep them as friends.
Another thing that helps me is to stay busy, busy. It is hard to concentrate sometimes and I am tired and in pain, but I deal (work) with people everyday, so they keep me busy.
I also try to stay positive and I think I will eventually feel much better.
I hope this helps. I know it is hard. I think everyday that I just have to do what I have to do. No options for me at this time.