I have 2 inch lump above 4 month old csection incident (scar), hurt when touch, not pain. is it normal? i also on hcg diet, not affect it with lump?

Healing: It is not unusual to have tenderness or other variable sensations about a c-section scar in the first 6 months. It is not unusual to have lumps immediately around the scar. Varies with technique of closure. However, you could have a hernia. Since it does not hurt unless touched, I recommend using compression underwear like spanks and avoid too much manipulation. If worried or it worsens, see MD.