I've had fluid in my ears since saturday and am having difficulty hearing. i have also had sinus drainage and yellow phlegm, but no fever or pain. this morning i also had blood in my mucus. i am wondering if this is an ear infection or not?

Could be: but how did you know that you have fluid in your middle ears? was it a doctor's diagnosis, or did you mean fluid in external ears? both would affect your hearing, middle ear infection is considered by some ENT specialists as part of sinuses system, so sinusitis would mean middle ear infection as well, and might be your case. You may want to check with your doctor, meanwhile saline nasal washes