Thanks for your query.Based on the facts that you have posted it appears that you have burning urination and increased frequency of urination since last 6 months .
Since anal and urethral sphincter
have same nerve innervation by Pudendal nerve
One gets burning urination and other urinary symptoms as a reffered pain due to fissure in anus due to constant irritation of anus..
Please consult qualified General surgeon
for clinical and digital rectal examination
to confirm the diagnosis and further treatment.
You will get releif of urinary symptoms once your fissure in anus gets cured.