Hello,
When I was a little girl, my mother used to tell me not to explain my friends what was happening to me when I was not at school, etc. But they asked me, and they asked me because they wanted to know if I was feeling well or not so I always told them what happened. Years later, in High School, the situation was repeated, I knew more people who turned to be my friends in a couple of months and who wanted to be sure that I was ok. These new friend, specially one of them, decided to share the disease with me. They came with me to the hospital, they had patience with me when I was too tired to do physical efforts, etc. At University, the same situation, I explained my "no secret" to my new friends and we had a normal relationship.
The problem came when I started to work at my current company. I had always explained my illness at the interview but this time, they didn't ask so I didn't explain it. I started working at my current job 4 years ago. At the beggining, I just told the story to a colleage just in case anything happened. Then, 2 years and a half later, I decided to tell my bosses about Thalassemia. Although they seem to have understand the illness and they treat me like they treat every other worker, the fact that I hide the illness for more than two years, makes them think that there is more than what I have explained and they really don't feel confortable to ask how am I feeling or if everything is ok.
I thing that not to have explained Thalassemia at work at the beginning of everything was a very big mistake. I feel that maybe if I had explained the situation before, they would have seen it like a part of me (the same that my friends did from the very beginning of our relationship) and they would feel now more confortable to ask what they need to know about me in order to have a closer relationship with me.
About how to explain it, I always say that I have a kind of anemia called Thalassemia which means that I have to visit the hospital for blood transfusions regularly and so, sometimes I feel ok and sometimes I feel bad. Then, as time goes by, I answer to all the questions that they have on each situation they live by my side. By this way, I avoid giving too much information that the only thing that does is to make them feel sorry for what is happening to you.
Kisses for everybody,
Laura.