[NodePark]

YES... they CAN. What you're experiencing is low blood sugar. Your sudden, and over whelming, increase in sugar intake caused your blood sugar to SKYROCKET. Your body responded with an equally high output of insulin. Which in turn, LOWERED your blood sugar. Too much sugar = too much insulin = severe drop in BS = your symptoms. I used to get this all the time. I had to carry high carb snacks with me where ever I went. DH wouldn't go on a long car ride with me unless I showed him my snacks (usually pretzels or raisins). My symptoms were like yours... and very scary. I would get disoriented, shaking hands, sweaty, cold body, headache, blurry vision, sick to my stomach, etc. Your body does whatever it has to do to get you to eat in order to bring your BS back up. It's a vicious cycle... what you're eating is causing this. Go back to low carb... and in the future plan better so you're not left feeling like this again.

Also... this is how people gain weight very quickly. When your BS gets too high (bad for your organs!) insulin is the key to getting it out of your blood and into your cells where it can be used... but if you have more than you need, or if you are insulin resistant (your cells don't respond as they should) then the glucose is easily converted to fat and stored in fat cells. Now, imagine what happens when your BS drops too low... you get the symptoms you had, eat more carbs, make more glucose and the whole cycle repeats itself. Over... and over... and over. When someone tells me that they are STARVING all the time, I believe THIS is what's happening. The person really IS hungry. It's the body's response to low blood sugar caused by this cycle of carbs/high BS/insulin/low BS.