Should I tell the one whom I want to marry with my sickness?

As-salamu `Alaykum warahmatullah wabarakatuh (May Allah's Peace, Mercy, and Blessings be upon you!).

I was hesitant to write to you, but after I had read some of your answers to many counsels, I decided to do so because I had seen that your answers were correct; May Allah reward you the best!

In fact, I have been afflicted with a chronic disease in the intestine, and everyday I take a medication for that. Thanks to Allah, I do not feel that I am sick, on the contrary I feel I am quite healthy.

I praise Allah, the Generous for His Ample Generousity, and because I do not complain but to my Lord, I did not tell anyone about my sickness. My Lord granted me success and I finished my study, my Masters, and my PH.D, and I have a good job, thanks to Allah.

I am religious and of good manners, but a question jumped into my mind which I hope that you answer according to your wide scope of knowledge:

Should I tell the one whom I want to marry about my disease? Does it affect the marital relationship? Is keeping this secret and not telling her about my disease a fraud? What do you think? May Allah bless you!