I have been dieting and 30 minute walk daily. I have had an incrediable amount of energy. The first day of taking this i took a half of one at 7 am then took the other half about 5:30 pm. i did'nt sleep at all that night so the next day i took a whole one at 7 am and had a high pulse of 106. Not sure if anyone else experienced this? I also had a terriable headache. Then the 3rd day taking it i just took a half one and didnt lose anything. So decided to tak e awhole one today. Was wondering if anyone else lost weight with just half one a day?