Contact your employer and ask. My employer did not mind me going away for a short time while home ill for months. He knew I was not able to work but could handle the low amount of activity of that travel.
Whether you are allowed to go depends on your country, which conditions rule your sick leave and your health problems.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.