Is the pain occuring in abdomen below the ribs? do you have nausea? Is the pain consistent ? on a scale of 1 to 10 how will you rate this pain ?
Are you having regular bowel movements? Any other symptoms?
Well, this can be due to these common causes
There can be a few causes for such pain -
-uretric colic - This is pain due to spasm of the ureter The cause can be a urinary stone, vesicouretric reflux, urinary tract infection
- ovarian cyst - a growth or cyst of the left sided ovary
- Intestinal problems like diverticulitis, infection etc.Other common cause are IBS, constipation.
The cause of the severe pain needs to be diagnosed and treated. I would advice you to consult your doctor ASAP or if the pain worsens go to ER. You will need a detailed examination and investigations including and ultrasound. In the meantime take an oral painkiller, take a light diet or fluids and rest.