My dog is 2yrs old and spaded she is a lab mix... she is peeing blood but she's eating and drinking normally... is this a urinary infection?

Most likely, a quick test at the vets will confirm it. I am sure she is in terrible pain. Please get her to the vet asap.

Blood in the urine = take her to the vet.

I'm amazed at the questions I see on this site that obviously NEED a Doctor, or a Vet to actually look at the patient, or in some cases the "victim" for the diagnosis of a seemingly serious medical condition.

Please, take you dog to the vet.

She could have a kidney infection or a bladder infection. Please have her looked at as soon as possible for a proper diagnosis.