my kid is 3 year 3 months ,she is having stomach ache and vomited 2 times within 1 Hour and feeling to go pee but she can't any natural remedies or does anyone knows the reason pls reply I'm really worried

It would be hard for anyone to give their opinion it would be wiser not to self diagnose. Stomach ache and vomiting is more common. What alerted me in your message was the part where you said she is unable to pee. I would think that would be a cause for alarm. Do moniter closelt, if there is still no output, please bring her to the doctors tomorrow morning. Hope she feels better soon.