From my experience, been deironed for 16 years now, 9 years prior undiagnosed with severe symptoms, the fatigue and pain never went away. With some people the fatigue does go away with venesections. I depends on the severity on how long that takes. I had to give up work as I only last a few hours a day, I cannot keep up with all the necessaries.
Haemochromatosis arthritis experts tell us that the arthritis pain never gets better. If you have a sympathetic doctor who will give you a certificate for a few weeks, take it by all means. It depends on how much your dr knows about haemochromatosis. You might have to educate him.
Having said that, try to keep moving - you might have to get a stationery bike, as being on sick leave and being seen riding a bike outside might not go together.
Eliminate sugar and starches from your diet, it reduces fatty liver and may increase your reduction of ferritin, as well as saving your pancreas. It might also help with the joint problem. Eat a normal serving of meat/protein and lots of green vegetables. Drink tea, coffee, milk with meals to help reduce the uptake of iron, eat calcium products, like cheese, yoghurt at end of meals. A small glass of red wine with dinner also helps, with the emphasis on small and singular.
Avoid high vit c products with meals, e.g. juice, supplements. I must have my vit c tablet each day to stay free from colds, sore throats, etc. but I have it last thing at night when hopefully, my stomach has emptied. It is mostly at the duodenal, that excess iron is absorbed from food. Antioxidents are important.
This is my last post for more than a month as I am going overseas and I don't expect to be contributing for a while. Letting you know, in case you have further questions and I cannot answer. However, I am sure others experienced with HH will do so.