Welcome to HCM,
Foul smell in your urine is probably due to infection.
Frequency, urgency and heaviness can increase due to Cystitis
You should get blood sugar(PP), routine Urine and Culture and sensitivity test of your urine done.
With reports you should consult your Urologist
for thorough examination, further investigations(if required) and treatment.
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Hope you found my response to your query informative and helpful.
With good wishes,
Dr.Chandra Shekhar Sharma