Anxiety and suicide. Thought's!

I was really happy in the past but since my son was admitted in the hospital due to dengue fever and recovered but I have lost hope in my life. Because I saw so many patients in the hospital and browsed online about medical problems and starting thinking what if I will get these problems then I got sinusitis and sevior gastritis and started giddiness so I was started thinking my life was over and used to browse online about all these problems and I thought I have very big problem but there was no problem to me in all the medical reports still I was trying to find out a problem in me than I got diabetes after 1 year of anxiety. now also I am thinking that I have some problem. What should I do now. I don't have any hope in my future and getting suicide thought's