Cold sweats, trembling hands, intense anxiety, a general sense of confusion -- no, it's not the night before final exams. These are signs of low blood sugar (hypoglycemia), and it often happens when you take too much insulin.
Hypoglycemia happens to many people with diabetes. And it can sometimes be serious. Thankfully, most episodes related to insulin can be avoided if you follow a few simple rules.
You might have too much insulin in your system and get a drop in your blood sugar for several reasons. It most often happens when you:
Misread the syringes or vials. This is easy to do if you’re unfamiliar with a new product.
Use the wrong type of insulin. Let's say you normally take 30 units of long-acting and 10 units of short-acting insulin. It's easy to get them mixed up.
Take insulin, but don't eat. Rapid-acting and short-acting insulin injections should be taken just before or with meals. Blood sugar rises after meals. Taking rapid-acting or short-acting insulin without eating could lower sugar levels to a potentially dangerous level.