Hathir,
All the previous posts are correct. You need to first find out if you do in fact have cancer. Even if it is positive, it may be confined enouth at this time that it can be taken care of without you having to announce it. If however, you continue to try to ignore it, there is always the chance it will continue to grow and get more involved. Enough kind people have let you know that there may be medical help in that country. Besides, you need to put your own mind at ease and the only way to do that at this point is to know what you are dealing with.
Good Luck.