Mental Protein

An unknown anxious uneasy feeling has been haunting me since weeks. The more ambitious one becomes, the queasy feeling proportionately increases. Does anyone know how to put an end to wanting more? It is not like I am forced to do many things, on the contrary I enjoy doing more things. It is like the cascade effect of Glucose production in your body, the more carbs you eat the more you want to eat. So you eat protein to prolong your eating frequency. Is there any mental protein, that is available to stop your ambitious hunger? Must be time for caffeine, just blabbing away nonsense or the "FlightPlan" seen in the evening.