I have been having extreme sinus pressure headaches for about 5 days now, just off and on. Now everytime I blow my nose to relieve the pressure there is a little blood mixed in with the mucus. The mucus is clear and I am having no other symtoms. The pressure is only on the left side of my head and behind my left eye. The headaches last anywhere from 15 mins to 3 hours, but always go away. But I have atleast one a day for these past 5 days. Do I have a sinus infection, or just regular sinus problems. Sinus problems runs in my family and my mom has chronic sinus infections and sinus headaches. Thanks alot.