Yes. I also remember god when happy or sad. But sad times remember more times than happy moments
People generally remember more when sad. kabir Das, famous Hindi saint poet wrote- "Dukh men sumiran sab karen Sukh men kare na koi. Jo Sukh me sumiran karen Dukh kahe ko hoi. (All remember when sad. If they remember when happy, why they be sad')
I do not believe in God. But I think this works in other way. Remembering does not mean chanting Bhajans or God name. This means accepting nature law and rule. So, if you always get up early in morning, eat simple food, are active, there is no reason why you fall sick. Even when healthy, follow the rule.