Upper inner leg pain that radiants down leg. increased need to urinate. why?

Sciatica maybe: Pain radiating down the leg is concerning for 'sciatica' which is usually due to a slipped disc in your spine impinging on a nerve root. How long have you had it? Ordinarily patients can initially try an anti-inflammatory like ibuprofen or naproxen. Given your urinary symptoms though- I would see a doctor for an examination ASAP, so they can formulate a treatment plan.