When I am at home I feel drowsy most of the time but at work if I slept well I feel ok. I feel better after I take Triamanic (anti allergy syryp) but drowsyness is still there some times It takes time to sleep and some times I am so sleepy and my forehead sweat time to time, I feel the synus Pain some time but the fluid which comes from my runny nose is not Green or brown shows no sign of infection its plain watery Sliva . Can you tell what is the cause?( I m worried for the drowsyness I am facing hope its not a sign of any bad desease) please tell me some thing.