Obsessive Neurosis and ADD ?

Hello

I am a 40 year old electronics engineer now serving the role of a entrepreneur.I am the the CEO as well as designer and programmer in a 4 member establishment. (INDIA)

I was under treatment for Obsessive neurosis while I was 20 years old. It lasted for 5 years and then I survived without medication up to last year. Last year I found it very difficult to focus on my work.

Actually I am engaged in a work which is really my passion,but I don't know why, simply I cant sit down and work. Somehow I will postpone my work until the last moment. So I consulted again my old psychiatrist and was taking Fluvoxin 50 and Attentrol 18 (tabs in INDIA)for some 8 months. I should say there was slight improvement but not substantial change. So I fed up and abruptly stopped medicine. Now for the past 2 months I am without medicine but situation worsened further. I stopped because I didn't get a good result.
Could anybody suggest the startegy I should take in my situation? Is there any way other than medicine?
I am not still sure weather it is a disease or my laziness? Business is affected seriously.

Please give your opinion.

Thanks
Roy