O Lord my God, I cried unto thee - In the time of trouble and danger.
And thou hast healed me - Thou didst restore me to health. The language here evidently refers to the fact that he had been sick, and had then been restored to health.
Related Commentaries of Psalms 30:2
Psalms 30:2
2 O LORD my God, I cried unto thee, and thou hast healed me.