Duly is defined as at the right time or as expected. An example of duly is a person showing up when they were supposed to arrive. in a due manner; specif., 1  as due; rightfully.  when due; at the right time.
If you eat a high-fat meal, you will feel tired after eating because fat is harder for the body to digest than carbohydrates and protein. When you eat a lot of fat, your digestive system becomes sluggish, and your body sends more blood to your digestive organs so that the job of digesting your food can be done.ood Allergies. A classic symptom of food allergies is feeling tired after eating a food you are allergic too. Common food allergies include gluten (the protein in wheat), dairy products and tree nuts, but sensitivity to any food can cause fatigue.
Another reason for your exhaustion after the spell might be that you put too much of your energy into it,which sounds possible to me since you really want this person out of your life. Maybe the strength of your intention made you use a lot more energy in that spell than you realised. know that most people think it is unproper magic usage that makes you tired after a spell but I feel drained after every spell I do, so I see it is normal, the bigger the spell the more I need to rest.