This is the 3rd time in 3 months that I've had a cold, but this one feels like a flu. I've lost 15 pounds. Am currently losing a pound a day. I can't seem to stay awake for more than about 4 hours at a time. And I have stabbing pain in my lower back and stomach.

So you go see your doctor or urgent care facility tomorrow for an exam to determine if there is something else wrong.

Weight loss would be from fluid loss ( water ) so be sure to drink plenty of liquids