Drowsiness, sleepy. are they also the symptoms of uti?

Not usually: However you know yourself better. For example, if every time you have urine infection you get sleepy, it may be related! sleepy and drowsy symptoms may be related to a medication, sleep deprivation, or rarely you may have kidney weakness. Get your primary doc to check your blood tests.

Sleepiness: Mostly we know is due to sleep deprivation, sleep apnea, narcolepsy. But it is reported in infectious processes especially if they cause fever. Make sure that we can tell the difference between fatigue or sleepiness.