What can cause urinary retention in the a.M? Very difficult to urinate even w/ a full bladder, and takes several minutes 2 evacuate, no other symptoms.

Bladder outlet issue. It is not unusual to have issues emptying your bladder when it is most full, due to overstretching. Recommend discussing this with your physician as an enlarged prostate can also play a role. There are several options to help alleviate the problem once diagnosed, depending on the factors causing it.