Symptoms can vary and are related to the specific areas of the brain that the ischemia is affecting. Look up the areas where the hyperintensities are located and see if their function corresponds to your symptoms. Also, it is possible that your microvascular ischemia is asymptomatic, at least for now. In my case my areas of disease are different than yours and manifest mainly as balance/gait issues.

Since there is really no way to reverse this the only thing you can do is live a healthy lifestyle to minimize the progression and try to not stress over it.