If you try healing but your health gets healed more that you need, you get Overhealth Overhealth is a feature when you get more health (Medkits give random amount of hp) Example, 99 hp but u use medkit, now you have 125/100 hp! But your health will decreasw until it is 100 or less 120 hp can tank a bomb rat Golden medkits which arw not shown in game gives you hp even if yoy have full hp, giving you overhealth