I have been banded for 13 days. I'm still feeling my way through this and have had a few weird side effects. One of my side effects was the feeling of weakness & lack of energy. I am getting about 50 gr of protein in and taking the vitamins. I went to the Dr. yesterday and my blood pressure was way too low. She stopped my blood pressure medication for 2 days and on day 3 I start taking it again at half dosage. I sure hope this helps me - don't like the weak feeling at all !!!!