I disabled history the first time I saw the option to turn it off (more than few years back), I never had problem finding what I am looking for.

I am sure everybody here knows that this only means that Google apps don't use your history, but it's still saved.

Well considering that I've had it off this whole time, I doubt its that bad. Maybe even you're getting a lighter version of duckduckgo.

I don't think it would. I've had it disabled for a long time and never noticed anything strange.

If anything, it'll improve your searches. I always disable search history, on all my accounts.