I’m 1 week post op. I have had a low grade headache since I got home. It’s not a migraine & it’s not a sinus headache, it’s just annoyingly there!
I think it’s a low blood sugar headache. Before if I had a headache like this I would of had a glass of chocolate milk & it would have gone away.
Since I’m on liquids right now making sure I get protein I’m only getting 500-700 calories & I just don’t think that’s enough.
I talked with the dietitian & she suggested making my shakes from 2% milk instead of unsweetened almond milk.
I need some chocolate, cheese or a Pepsi real bad!

There is a type of low blood sugar problem that can occur after gastric bypass surgery. It is called reactive hypoglycemia. Here is a link to the condition. https://www.ridgeviewmedical.org/services/bariatric-weight-loss/enewsletter-articles/reactive-hypoglycemia-postgastric-bypass

Generally this problem begins to occur several months after surgery. Since you are only a week after surgery, I suspect this is not the cause. These are the symptoms of hypoglycemia:

An irregular heart rhythm

* Fatigue

* Pale skin

* Shakiness

* Anxiety

* Sweating

* Hunger

* Irritability

* Tingling sensation around the mouth

* Crying out during sleep

As hypoglycemia worsens, signs and symptoms may include:

* Confusion, abnormal behavior or both, such as the inability to complete routine tasks

* Visual disturbances, such as blurred vision

* Seizures

* Loss of consciousness

If you were diabetic and taking medication for the condition, the medication might be driving your body into hypoglycemia. If so this is a sign that you need to cut back on the diabetic medicine. But if you were diabetic then you probably have a glucose meter and could test to see if your hypothesis (low blood sugar) is a correct one.