Not disclosing one's health problems to one's spouse

I want to ask a question and want fatwa. I am a psychiatric patient suffering from serious mental illness under treatment of a qualified doctor. The disease can be controlled but can't be finished. Also I had a blood disease thalesimia minor, which if my wife/partner also has (which is not tested yet), can cause to give birth to a baby with serious blood disease. I knew that before marriage and my physician told me that where you want to get married to take blood tests of the girl you want to get married to. We did not tell and hide where I was engaged my serious mental illness and blood disease which is minor. Now my wife and her family knows my mental disease because of my behaviour and medicines which I use not blood disease and she has give me a chance of few months to improve my self. If she see improvements she will decide to continue marriage with me or not. I am trying to improve my self. Is Nikaah Halaal and as we hid my mental and blood disease from my wife and her mother before marriage?