Do you have diabetes? Are you on any medications? How many times are you getting up in night time in last couple of days? Do you have any urinary burning, urgency, poor stream of urine?
Any significant past medical / surgical history? Any important family history?
This is very likely to be urinary tract infection. A cause in males should be ascertained. Day night increased frequency, urine appearance changing, irritation at the tip, all point out to UTI. Getting a urine examination and a urine culture is the first step. A course of antibiotics would be needed for the treatment. Prostate examination to rule out prostatitis is an essential part of the work up. Any history of unsafe sex would warrant a urethral swab (culture) to look for the urethritis (specific urethritis or non specific urethritis).
Please feel free for your follow up questions.