Can a severe uti cause symptoms of no burning during urination, at end intense pressure / pain at meatus followed by blood. no fever. mild back pain?

Unlikely: Severe bacterial utis are commonly associated with dysuria (burning). You need to be seen by a urologist to further investigate the bleeding source from your lower urinary tract (i.e. Bladder or prostate origin). I would not wait. You can have any number of problems ranging from prostatitis to bladder cancer. Please seek attention as soon as possible.

Could be a UTI: Need to get a urinalysis & consultation with urologist or urn-gynecologist.