I have graves disease and recently i also started having TED (thyroid eye disease).
My work is very stressful and as you know researchers claims that the stress may make these cases worse. Also i feel tired and i am forgetting stuffs. Also i feel my eyes may get worse since my work is all in the computer.
Has anyone faced these at work and how have you delt with it? Is a doctor letter necessary? What type of leave i may ask for if any?
To be covered at work for disability under the Equality Act, you need to be able to show that your condition will have a substantial, long-term (usually interpreted as twelve months or more) adverse effect on your ability to carry out normal day-to-day activities. It can be difficult for doctors to predict this with Graves’/TED but if yours will, it will certainly help your case. If you are considered disabled under the Act, your employer is legally obliged to make ‘reasonable adjustments’. If you’ve already been in this category for several months and there is no immediate prospect of recovery, it will be easier to make the case.
You should discuss the situation with your GP, to see whether he will write you a Fitnote which specifies a phased return to work - effectively reduced hours. If you work less than 4 days a week, you may be entitled to statutory sick pay for the days you don’t work.
You can also ask your employer (or they may suggest) a referral to occupational health. If your employer doesn’t have their own occupational health support, there is a government scheme that provides free consultations, but you need to have been off work for four weeks.
The main thing is, talk to your employer and explain your condition and discuss what would help ... if they don’t know about it, they can’t be expected to make reasonable adjustments.
A good employer will want to give you the best chance of returning to full health (and work!) regardless of your legal status as disabled. Work out what you think might help you, and ask - for example, agreement that you can have ten minutes away from your screen in every hour (or whatever). Would better lighting help ? Is there alternative work you could do which is less computer-related ? Could you work reduced hours for a while ? (You would probably have to accept less pay). Could it be agreed that any performance criteria relating to the quantity or speed of work be relaxed, which might make it easier for you to deal with the thyroid fuzziness we all know so well, and make it less likely you would make mistakes.
Here are a couple of links that may help:
Graves Disease/Hypothyroidism and work life
graves
Propranolol for Graves Disease \ hyperthyroidism 
Graves' Disease and facing Disciplinary Action at Work
Graves - next stage
