This stuff I've had is just miserable, feel sort of OK, if I don't eat; but I've got an appetite, and get hungry. 4 - 5 days meals went through me in about 45 minutes. Immodium stopped that but, within 10 minutes of eating anything, stomach starts cramping, heart starts racing, get a light feeling in my stomach and chest, get dizzy, low grade fever kicks in, headache sets in, get drowsy, and crash. Tried to go out and do a little work in the yard, nothing at all difficult, and broke out in a cold sweat in all of about 3 minutes. Took a few Pro-Biotics the other night, and within an hour my stomach felt like I'd done 500 situps; knotted up tight all the way across, and stayed that way for about 2 - 3 hours. Otherwise, just feel whipped... can't stay awake, until it's time to go to sleep, then I can't sleep. Have no energy at all!! Nature of the beast I guess, everyone I know that's had it, has the same complaints.