After reading Ur Question, It seems that You might have Stone in Urinary system
(i.e. back pain, worsening pain,foul smell urine)
Foul smelling Urine Suggests Urinary Tract Infection
I would suggest You to consult with Urologist
Ask Him to repeat Urine analysis & Plain X-ray KUB & Ultra sonography
abdomen for Urinary system.
Advice from Me is to take Plenty of water , min.10-12 glass per day.
Take more fruit Juices & fluid.
Take Full course of UTI treatment & Get well soon.
Regards, DR JIGNESH