I have dark brown smelly urine, no pain at all just these symptoms. what could be causing it?

Malodorous urine: Commonly, our urine is dark and odorous in the mornings due to relative dehydration (we obviously don’t drink when we sleep). It can be due to things we ingest, eg. energy drinks, asparagus, beetroot, certain medications. It can also be an early sign of a water infection so I would try plenty of clear fluids first & if you have any burning, stinging &/or frequency, consult a health professional.

See below : The most common cause of dark brown urine with pungent smell is dehydration (not drinking enough water). Asymptomatic bacteriuria (colonization of urine with bacteria but without UTI symptoms) is quite common in older women and generally requires no treatment. Liver disease and various foods (e.g. asparagus), supplements, vitamins, and medications can also cause various color and/or odor changes.